Thunderbird Lightning not syncing anymore after update from NC 11.0.3. to 12.0.0

[frank33]

Hi, it’s a bug of nextcloud
fix available here

[fixed with NC 12.0.1] Syncing issue with Thunderbird + Lightning

These are files for automated testing, they are not packaged in the releases… So finally it’s only one file that changes, you can click on the raw-view of a file in github and download it: https://raw.githubusercontent.com/nextcloud/server/913758dc283d510d7e2400d52280939ab2d97d36/apps/dav/lib/Connector/Sabre/BearerAuth.php You can use this file to replace yours manually. 12.0.1 will have it, I checked the release schedule again, now it is early July (https://github.com/nextcloud/server/wiki/…

or wait for 12.0.1

I had this bug on one of serveral workstations only, don’t know why only at this one.
I installed this fix manually and everythings works fine again