Excellent thought. Hadn’t occurred to me to try that.
Made a brand new “testing” game, closed the IDE then restarted … and yeah … Still get the error (i DO have it set to load the last project. I’ll try turning that off here quick)
EDIT: Yes. It happens as soon as (well, a couple seconds after actually) a new project is started.
I’ve not added any extensions and hadn’t changed the game (yet) when this started happening.
EDIT EDIT: I tried opening a totally different project, and the error/warning still came up.