Backup your overview settings to bio. Spin up a windows Sandbox, run a eve in that, reset your settings in that, see if it helps, if it does, clear your eve cache folders and reset settings on the main pc.
If the problem was fixed in the sandbox but not on your pc, then remove eve and all hidden cache folders and reinstall.
(you are working out if it is a client issue or a server/engine issue)
If the issue persists in the sandbox you are SOL. It’s probably a anti botting measure.