This is by design to workaround limits and bugs on Android/glbasic (not sure why, but its out of my hand here).
Im cant really do anything like anymore and im wont look on this issue anymore, so its is are its are now. Android is a quite very pity hell on this issue and have fighted throught a long time with it (if its not a bug in glbasic eventuelly). So this is what you see and that it. Im wont do anything more about this issue.
Im remember the main reason im did this limits is simply glbasic dosent resume correctly and often crash out when back was used. This is why its best to disable it and doing that by code intead. If you enable it, your game will quit (which is more safe than getting those resume trouble).