As the title says, my bluetooth keyboard will lose all keybinds, minus Tab, the arrow keys, and the F keys (F1, F2, etc.)
This happens when typing in new layer names, or when you lock the layers window, and the color pallet window.
I do not know if this happens to all bluetooth keyboards, but the one I currently use is a cheapo Omotion Wireless Keyboard
A quick fix to this is to simply go back to the main Art Studio Pro canvas menu, then reopen the canvas you are working on.