Well that last update was with 4.6.1 build … now after your reply I tried again with the slow device cooking the project with 4.8.1 and the problems seems gone after 15 minutes of playing my game. I’ll update again if the issue repeats.
The device was and old and slow Galaxy Tab 1 P100. Also happened occasionally with a Galaxy S2, but I don’t longer have that phone.
regards.