@peterschmidler
Check the post of @PatPend
- Download the v6.4.608 of the richdocumentscode package
- copy the package in /var/snap/nextcloud/current/nextcloud/extra-apps
- replace the newer version with the command ‘tar -xf richdocumentscode.tar.gz’
collabora should work once you have this version installed. Off course as soon as you upgrade to the newer version collabora will fail again.