Do you have the same issue if you follow the OP’s steps to reproduce it?
Different but related I suspect
Provide extra information to complete the original description of the issue:
I did a 3 leg flight today EGBB - EGPH - EIDW - EGBB. All was well until returning to EGBB. No planes stuck on the runway, just no planes at all. Nothing on the ground at EGBB! FSLTL in use, using default setting.
If relevant, provide additional screenshots/video: