Each restart of sourcetree resets the account in repository settings

I have several repositories cloned from Bitbucket server in sourcetree.

After I restart sourcetree the Remote button has a Red question mark. ANd I am not able to push any changes to the Bitbucket server

When I go to the repository settings and to the Remote repository path in de screen "Remote details" the Remote Account is set to "Generic account".

When I switch to my personal account I can push changes again.

But after restarten sourcetree it switches back to the "Generic Account" again and then I need to switch to my personal account again.

We are working with 3.3.8.