I have a flight alert setup for an aircraft which decided to start flying blocked, so I thought i would just go delete the alert since it won’t ever do anything. When I hit the delete button it doesn’t do anything but return me to the alert page telling me the aircraft is blocked etc etc.
Yea, that’s a bug where you can’t make any changes to alerts for a blocked ident that you don’t have access to. Since it’s blocked you won’t get any flight alerts, and since it’s disabled it doesn’t count against your quota of active flight alerts.