MacOS Desktop client 3.4.0 crashing

I just updated to the latest version of the Mac Desktop client, version 3.4.0 but every time I open it, it just starts and shows the green check indicating it connected to the server. It can stay there but if I click on it to try to open it, it immediately crashes.
I cannot find anywhere on the Nextcloud download page a link to a prior version and I unfortunately did not keep a copy of the previous installer.

I did the update without any hassle (Monterey 12.0.1) but maybe it helps to get rid of all corresponding files and re-install the client again. Try to find these files and delete them for a clean re-start?

Bildschirmfoto 2021-12-01 um 05.58.16

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thank you Oliver, I have deleted all related Nextcloud files, uninstalled and started again, but the result is the same: once I launch it and it goes to “green”, if I click on the app to open it, it just vanishes and is not running anymore. I am on Catalina 10.15.7 (older but reliable Mac).

I think you can download older versions from the GitHub page.

Best, Bernd

upon further investigation, I found the crash log file, where it actually indicates the application received an “abort” signal, maybe someone with more knowledge might find some indication of the culprit:
Process: Nextcloud [5633]
Path: /Applications/
Identifier: com.nextcloud.desktopclient
Version: 3.4.0git [build 8401] (
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Nextcloud [5633]
User ID: 501

Date/Time: 2021-12-01 09:01:42.516 -0600
OS Version: Mac OS X 10.15.7 (19H1519)
Report Version: 12
Anonymous UUID: 5662C07A-8338-94B7-6F0B-A447B6218324

Sleep/Wake UUID: F2CEB1C3-D0A5-4EA9-A96E-315C9FF716E2

Time Awake Since Boot: 7000 seconds
Time Since Wake: 2800 seconds

System Integrity Protection: enabled

Crashed Thread: 0 Dispatch queue:

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000

Application Specific Information:
abort() called

Application Specific Signatures:
Graphics kernel error: 0xfffffffb

While 3.4.0 is the latest version released yesterday, you may go with the predecessor at - maybe this helps as a first step?

Thanks a lot Oliver, this actually did the trick. So for now I will remain in this version until another is published. :smiley:

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For me, the same crash occurs. Hoping to see it fixed in 3.4.1 :grinning:


Information for all others using different setup:

Just did an update on macOS Big Sur v11.6.1 and the client is working pretty well.
Old version v3.3.6, new version 3.4.0

Have a lot of data in my NC (200k files, 700GB in total) and no big resync took place.

I cannot update to BigSur as my Mac model does not support it, I am stuck at MacOS Catalina 10.15.7 but that shouldn’t be a stopper, should it?

No. Catalina is fine.