When switching from ship A to ship B the bridge officers are not always being set correctly.
When ship A and ship B have setups that share a bridge officer X, then when switching from A to B, X will not be placed correctly in B's setup. X's station will instead remain empty.
I guess that this is an artifact from your attempts to bandaid-patch the multiple bridge officer ("voldemort") issue, and instead of running a clean-up script once during server maintenance and fixing the underlying issue in the code, you decided to from now on run a cleanup script everytime someone switches between ships and remove any shared bridge officers. Unfortunately, this has the mentioned side effects of also not correctly equipping valid bridge officers.