"Start on Scene" barely works after background replacement

I do have a crazy behaviour of the engine. In case I build a scene with a backfround image and use "start on scene" - all works fine. But as soon as I replace the background image, in most cases (not in all, on some scenes this works fine) the "start on scene" doesn`t work any more. It then jumps to the first scene of the game - always. This happens when the replacement is done with .png or with a .jpg file - the file type doesnt` make a difference.

Found the issue with the help of another thread!