[Freeswitch-users] session.recordFile create empy wav in while loop

Hey Guys, i have a strange Problem with session.recordFile in a while loop and i don't know how to solve it. The first run in the loop is absolutly ok, session.recordFile is creating a good clean wavefile. but in the second, third .. run, every wav file has a size of 47724 byte and no audio content. Please help me, because it is an urgent case. Thankx for getting help. Daniel