This is a follow-up to the colosed topic Workbench can not connect to other users sessio for collaboration
I finally found the time to upgrade the testing instance to the newest version (2022.07.1+554.pro3) and we still have the problem, that two users collaborating on the same file get the warning
Another user is currently editing the file collaborationtest1.R, but RStudio could not connect to their session. Use caution when saving.
RStudio Workbench is installed on Ubuntu 18.04.6 LTS, within a Docker container. Storage is on the normal Linux file system.
Any help or hint for how to solve this problem would be appreciated.