[BUG] - Inconsistent amount of cases

[rickenella]

Describe the bug
The dashboard shows a different number of (open) cases than actually still exist.

To Reproduce
We have experimented a little with the client or used the endpoints of the WebAPI directly if the function did not exist/was outdated.
We suspect that this problem has occurred due to incorrect/incomplete requests/responses.

Screenshots

Additional context
Since the cases are still displayed correctly under "Manage Cases", it may not be an integrity problem with the DB, but just a cache error?
All tests have been carried out under version 2.4.5.

[rickenella]

While deleting cases manually I got the following error

Refreshing solved the problem, but maybe related to this issue.