HINT: using Cryptomator before AND after Upgrade to MacOS 15.3.2

Hi to all
THIS IS OLY A HINT, NOT an actual issue to me.
I ran into the issue that I could no longer unlock my vault after upgrading MacOS.
Luckily I installed and created a test vault BEFORE upgrading macOS to 15.3.2
Before:
I could use cryptomator as expected
After:
I could no longer unlock and Cryptomator was stuck in unlocking process
Additionally I note that AFTER upgrade there was just a drive ‘d’ to be shown in Finder.

:warning: Staff notice: Backup your vault before executing the following steps, since the vault directory is deleted in the process :warning:

Here is what I did, but may not be suffice if there were already data in u’r vault:
0) deactivated autostart launch of Cryptomator not to get autostarted again

  1. since I also could not uninstall Cryptomator, since it was still trying to unlock my vault(?):
    → Login on Terminal and as sudo: entering pswd for normal user
  2. did an ‘rm -rf /parent-directory-where-vault-is-stored’
  3. got into /Applications folder and did ‘rm -rf Cryptomator.app’ ; also as sudo
  4. also checked if nearly everything was deleted/cleaned-up
  5. reboot my Mac
  6. Upgraded MacOS
  7. Reinstalled/Reconfigured Cryptomator and my vault.
  8. Is now running/working as expected.
    Additionally now I noted that there are now two drives in the vault’s directory to be found:
    ‘c’: the data drive I think, and:
    ‘d’: the drive containing all the encrypt/decrypt informations.

So I do not know exactly what happened during my upgrade and why unlocking did no longer work. Reinstalling all helped in my case.
BUT: If u already have data in your vault: DO A BACKUP BEFORE UPGRADING.
Hope this helps anybody.

Regards,
Roger