Chapter in this post:
With macOS 10.15 Catalina, Apple released its latest operating system at the beginning of October 2019. On compatible models of the Mac, iMac and MacBook you can now install the new OS. However, as every year, there are also a few teething troubles on the Apple computer, which I would like to list for you below. If you know any other macOS Catalina problems and solutions that do not appear in the following list, please leave a comment. I will always expand the article if I come across something for it. For the sake of clarity, have a look at the table of contents of the article;)
Update 29.01.2020: Apple just released the update to 10.15.3. Read more here. I would recommend installing the update as it is sure to fix some issues.
Problems with Mojave: List of macOS 10.14 teething problems from 2018
Besides the macOS 10.15 Catalina download that I already have discussed here Of course, various stumbling blocks can also be in the way during installation. If the Catalina installation doesn't work for you, there are a few ways to solve the problem. First and foremost, of course, to free up space on the Macintosh HD hard drive; because the new Apple operating system requires around 30 GB of memory. Otherwise there are the following options:
A little hint: Press cmd + L during the installation process to see if the installation is still running and how long it will take.
On the Apple Mac you can, among other things, reset the Random Access Memory (PRAM) or the System Management Controller (SMC) parameter. What this all means and how the resets work, I have summarized for you here: Instructions: NVRAM, PRAM and SMC reset on Mac - reset to solve problems. Take a look at it; To repeat the information there here would go beyond the scope.
« Inset »If you are interested in MagSafe on the new iPhone 12: I measured it again and found a shockingly poor charging performance. Read more here in my post about the metrics on MagSafe.
Of course, the installation can also run completely smoothly, but the start of the system may then be faulty. If your Apple computer does not boot properly or does not want to boot properly, first force the shutdown and then switch it on again. Immediately press cmd + R to boot in recovery mode. When the loading bar appears, you can release the buttons again. From the Utilities menu window, you then open the Disk Utility.
Select the Start Volume, i.e. the hard disk from which the system will be started, in the left bar of the Disk Utility. In most cases this will be the “Macintosh HD”. Click on it with the secondary click or right-click and select the menu item "Start first aid ..." In the window that asks again whether you want to execute the process, click on the "Execute" button. When the repair is complete, the Mac will restart normally; that should work now.
If you want to start your freshly installed Apple operating system and it freezes on the login screen, there is also a solution. The reason can be kernel extensions that come from third-party manufacturers - so-called kexts. A clean Catalina start can be achieved if you move its library folder to a backup folder in the safe mode described above. You can find the kexts in ~/Library/Extensions on the Mac hard drive. Just use the following Port-Command that moves the folder to your user directory:
mkdir ~ / Extensions-Backup && sudo mv / Library / Extensions / * ~ / Extensions-Backup /
In the following I have listed solutions for many individual problems that can occur after upgrading the Apple Mac to macOS 10.15 Catalina. In general, however, you should always try the following before:
If restarting the Mac app in question, restarting the computer, and other common measures don't work, there's a problem. Perhaps the reason the macOS Catalina apps are not working is their 32-bit architecture. Because only 64-bit apps are supported under the new operating system. You can find a guide to this with this link. You can find out which of your apps is 32-bit and which operates with 64-bit:
By the way, the solution here is: update the software. Because if the development of the software is still active, there should be an app update to maintain compatibility. If it is an old program for which there is no support or further development, you need - if there is one - an emulator for 32-bit apps. Or another app that takes over the tasks of the outdated software.
If peripherals connected via USB or Bluetooth do not work after the Catalina upgrade, this is probably due to their drivers. If the hard drive connected via USB, the mouse or keyboard or the printer do not respond, this could be due to a 32-bit driver that is no longer supported. You can find an update via the App Store, among other things. Alternatively, you can write to the developer (s) if you cannot find an update notice or a new driver on their website either.
It is to be expected that some Macs will become slower after the macOS 10.15 upgrade. If your Apple computer runs slowly after installing Catalina, it could be due to one or two solvable reasons. The first one goes by the name fileproviderd and is a system process. Since the new operating system exchanges a lot of data with web processes (e.g. cloud storage), the fileproviderd Process - especially at the beginning, when the new system is synchronized with the web services - together with the mds Process 80% to 100% CPU demand. You can locate the processes, examine them for CPU performance and terminate them in the Activity display (called "Task Manager" in Windows)which you can find on the Launchpad.
Browser extensions in Apple Safari, Google Chrome and Mozilla Firefox can also cause problems and slow down the Mac. Especially if the browser or its extensions are not yet designed for the current system. How to deactivate extensions in the three web programs:
When Microsoft OneDrive If it doesn't work on Catalina, there is a simple solution. I can't 100% confirm the solution works, but other sources say it does. The solution to this Catalina problem lies in creating the connection again:
With “Sidecar”, Apple has created a proprietary option for using the iPad as a second Mac, iMac or MacBook screen. The Apple Pencil can also be used in Mac apps and the iPad can be used as a graphics tablet. This should work with the new iPadOS and macOS Catalina - but it doesn't always do. Sidecar may not work for you because your Mac is too old. Models from before 2015 are not supported per se: iMac from the Late 2015 model, iMac Pro from 2017, MacBook from Early 2016, MacBook Air from Late 2018, MacBook Pro from Mid 2016, Mac mini from Late 2018, Mac Pro from 2019.
But there is a solution that can work on older Mac models. This again consists of a command for the terminal. If you want to try to use Sidecar on a Mac older than the one listed above, try this command line:
defaults write com.apple.sidecar.display allowAllDevices -bool YES
Do you have a newer Apple computer and a Sidecar compatible iPad, and Sidecar still doesn't work? Then try first to solve the second monitor function with a cable connection. Connect the iPad to your Mac by cable and try again. If that doesn't work, disconnect the cable again, delete the WiFi settings on the computer, dial in to the WiFi again and try again to establish a wireless sidecar connection. You can find the WiFi settings and the option to remove a network like this:
Then try to establish a sidecar connection with the iPad.
The integration of iCloud and other web services is one of those sources that always leads to bugs in a new Apple operating system. Until there is a patch with an update version (macOS 10.15.1 or later), there is not much that can be done here. If you cannot download iCloud folders as a whole, then open the said folder and download the files from it individually. That should work.
It can also help to back up the folders locally (copy everything one by one to new folders on the hard drive), then delete the iCloud folders and recreate them. In some cases, the download of entire folders should work if the folders were recreated in iCloud after the Catalina upgrade. It depends on a try ...
The previous operating system, macOS 10.14 Mojave, was the last with iTunes. In the new system, the music app comes along and wants to trill the tracks on the hard drive. If that doesn't work, the app freezes, the search for music files runs endlessly and no progress can be seen, or if other problems occur, there is a solution. Because the problems can arise from obsolete Mojave caches. To solve this Catalina problem, do the following:
Following this procedure, new cache files and directories that work should be created. The music app should then run without any problems.
Unfortunately, this is a problem that you have to live with for the time being. Because the increased security of the system is responsible for the many warning notices, approvals for individual processes and the like; there is no workaround. Either you have agreed to everything (yes, App XYZ can access the calendar, and yes, Safari can save the download of the ABC page, ...) or there is a patch for it. We shall see which applies first.
The problem also seems to exist every time an Apple operating system has been upgraded. But don't worry if Bluetooth doesn't work with Catalina. There is a solution for this: simply delete the Bluetooth.plist files. This is not a problem, as they are automatically recreated - ideally so that the radio connection works afterwards. And this is how you proceed:
Doesn't that help yet? Then take a look at this more detailed guide: Bluetooth Problems on Mac - 4 Measures That Can Help! There you will also find the instructions for resetting the Bluetooth module on the Mac.
With macOS 10.15 Catalina, Apple is taking a further step in the convergence of the computer operating system and the iOS and iPadOS mobile systems. As a result, some extensions for the Safari web browser are no longer supported if they are based on the WebExtensions format. This is the case with .safariextz files. There is no direct solution to this, only the option of using a different browser in which the extensions or their substitutes work. I have listed above how you delete extensions that no longer work or cause problems.
If, after upgrading your system, the free space continues to decrease because your Mac's hard drive continues to fill up, then it's probably due to Time Machine. The Time Machine backups and copies of APFS snapshots are likely to be stored in different locations and reproduced over and over, so that free space is slowly running out.
To see how many snapshots there are already and which data they show, you can have them listed with this terminal command:
tmutil listlocalsnapshots / System / Volumes / Data
The command lists the local APFS snapshots of the Time Machine. If you no longer need them and therefore want to delete them, you can do that with this command (adjust the date in the appropriate place):
Alternatively, you can download a free test version of CleanMyMac X and thin out the Time Machine snapshots in the maintenance area of the app. Details about the software and the link to the download page can be found here: CleanMyMac X - anniversary version with malware removal.
If the MacBook battery runs out quickly after upgrading to macOS 10.15 Catalina, then you are also dealing with a well-known problem. No matter if Mac, iPhone, iPad or other Apple device; It is not uncommon for there to be a bug or certain processes that empty the battery before the first patch and bug fix.
I already mentioned the activity display above; here again the contribution to it. In the Apple counterpart to the Windows Task Manager you will find the running processes and their consumption of processor (CPU), memory (RAM), energy and so on. You can end hungry apps with the X symbol in the top left above the list. You can eliminate unresponsive apps via the menu with "Quit immediately".
The comments on this post often included references to the mail app and its problems under macOS 10.15 Catalina. Sometimes the program crashes, sometimes no new emails are received, sometimes the app freezes. There are very different hurdles if you want to continue using Apple's own client for emails after the macOS upgrade. That's why I looked for solutions and found them.
Before you carry out the following steps, you should definitely have made a backup. Since you've just upgraded to Catalina, I'll just assume that you have a backup copy of your hard drive and thus also your mail library. Well, let's tackle troubleshooting:
When the mail app finally runs smoothly after this procedure, you can delete the files that have been moved to the desktop or another backup folder (see step 8). Otherwise you should push them back into the folder from which you took them (see step 7).
Again, this can be an issue that occurs after upgrading the Mac operating system. So if you can look at the header information of your emails without any problems, but cannot find the content of the emails, you can try the following solution. This should also help if the formatting of the emails in the client is shifted, too small or otherwise strange:
If this does not cause the email content to be displayed again, there is another (somewhat experimental) trick: First close the Mail app completely (cmd+Q). Then uninstall all anti-Virus-Programs, anti-malware apps and similar third-party software. Restart Mail and see if that helped.
It can also happen that after upgrading your Mac, iMac or MacBook you can open the Mail app and view all your mails as usual. The only difference is that no more new e-mails are loaded and no newly written e-mails can be sent. There is also a procedure for this which can represent the solution to this Catalina problem. It is a two-part approach; the first steps are as follows:
If the connections have changed to a green status after checking the connections again, you will try again to send and receive e-mail. If sending and receiving does not work despite the green status of the connection, you can also remove the accounts in question from Mail and add new ones. If this does not bring any improvement, proceed as follows:
There is an interim solution in the event that the above approaches do not work for you and there is no update or no bug fix from Apple yet. The solution is that you register with the individual providers via their website and use the web browser to view your new e-mails and send them yourself. From GMX via the web and G-Mail to Yahoo and Co. it should work without any problems. You can also check your @ icloud.com emails and send them via the iCloud website.
Photoshop 10.15 and newer versions are compatible with macOS 20.0.6 Catalina. Problems can arise with older versions. If the 32-bit versions are concerned, they will no longer run on your Mac after upgrading the operating system. However, if your Photoshop app is still working, these problems can occur:
and / or
There may also be other problems that Adobe at this point performs. In the document you will also find solutions to overcome some hurdles with terminal commands.
Even with Lightroom there can be problems on the Mac after upgrading to macOS Catalina. Adobe has that in this document shown. According to the linked page, the versions from Lightroom Classic 8.4.1 and other 64-bit versions work with Catalina, but there are also minor operating problems here. For example, Nikon cameras are not recognized when tethering. In addition, the Lens Profile Creator in Lightroom does not work under Catalina - simply because it is still based on the 32-bit architecture. For both problems there is no real solution yet (except pictures from Nikon camera via cable or memory card exchange); Adobe is working on it though.
If you work as a DJ, DJane, musician or other audio nerd with the products and apps from Native Instruments, then you should refrain from installing Catalina for the time being. Not only does the new operating system take away the iTunes app with its directories and other advantages to which you have become accustomed. You also lose XML file support with macOS 10.15. Many DJ apps like Rekordbox or Traktor read XML files and need this support. Therefore you should wait for updates and patches from Native Instruments or from other developers whose apps you use.
Noodlesoft has the Hazel app for the Apple Mac, which helps organize files and folders. I received the following information by email from the developers and from Chief Paul Kim (translated from English, abbreviated):
[...] Apple has just launched macOS Catalina. Unfortunately, it contains numerous bugs, unannounced changes, and other things that affect Hazel. If Hazel is important to your workflow, I strongly advise against upgrading to Catalina at this point in time.
I'm currently working on a version that will work around a lot of the problems, but this is proving difficult [...] In case you're interested in checking out the latest Hazel Beta, the details can be found on the forums [...] I'll also send you an announcement when Hazel is compatible with Catalina. [...]
If you have any questions, please contact email@example.com.
Can't you find your Catalina problem in this list or do you still have a solution that is not mentioned here? Then please leave a comment on the topic! Feel free to get in touch with your concern or comment - as well as if this post could help you with your problem with macOS 10.15. Thank you! ;)
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After graduating from high school, Johannes completed an apprenticeship as a business assistant specializing in foreign languages. But then he decided to research and write, which resulted in his independence. For several years he has been working for Sir Apfelot, among others. His articles include product introductions, news, manuals, video games, consoles, and more. He follows Apple keynotes live via stream.