thank you very much for report. Damn! you are completely right, I know what is going on, I made this bug in last version, when I implemented layers. Due layers I rewrote big part of core. I open bag in system reserved layer(because is always on top), but I completely forgot that this layer is not accessible by user, sorry for mistake. This is harder decision. I think I must draw it on user created top layer, will think about it over weekend, I will release fix in next days.
Edit : Well, I think in play mode I’ll draw on system reserved layer, but in design mode I’ll draw opened bag on the same layer where is it’s bag widget
Many thanks for report.