From an aircraft flying.

Any ideas ?

Never mind - working now 😀.  Don't know what I did 🤫.

I had a similar experience happen over the weekend. I ended a flight and the splash screen appeared with the progress bar slowly advancing at the bottom of the screen. But it never returned to the main screen. I finally ended up closing FS2020. But after closing, the background music kept playing despite there being no evidence of FS2020 running in task manager. Very weird. I ended up restarting my PC and FS2020 worked normally afterwards. I have no explanation.