[2020] Can't play solo maps anymore

Originally Posted by ambnic
I have Trackmania Stadium and have played for a couple of week without problem. Today I've tried to play some of the pre-existing solo maps, but when I select one and click on start, I get a strange window at full screen that seems like a script editor. There are "Save and Test", "Compile" and other buttons above a large input text field. Escaping just gets me back to the list of solo maps.

Can this be due to some kind of update that did not update the map files? I can briefly see an error dialog compalning about a missing "#RequestContext" or something.
Multiplayer works as usual.

Anybody else experiencing the same problem?

Originally Posted by ambnic
I was going to try to get some screenshots and it just worked this time! Maybe there was an update meanwhile...