So… it seems that when you set the package name under Project > Properties > Deployment > Android it does not propagate the package name throughout.
Main activity is still part of com.mycompany.mygame
And, when you run a game in debug, if there is another game installed on your device with this package name (i.e. any JME game) it launches that instead.
I assume this is not working as intended?
Can someone give me a step-by-step of what needs to be updated to avoid this?