BlueStacks -AI2's Worst Enemy

Recently, a large number of emulator related issues reported were tracked to BlueStacks - a normally benign program that allows Android apps to run on a regular computer.

Be aware developers, BlueStacks and App Inventor 2 do not get along .  BlueStacks creates serious issues with AI2 Programming.  It is important for users that do have BlueStacks installed on their computers that they disable it and do not run it when you program AI2.  This means all the Bluestacks processes also be closed using Task Manager in Windows and doing other things in Mac/Linux.  Sometimes, users relate that it is not sufficient to disable BlueStacks, all its running processes must be shut down too.

***  If you program with App Inventor 2, please avoid BlueStacks. ***