Hi yes its a noted problem that can happen.
By making up a new group of memories 16 max. And using them it normally resolves the issue of a corruption in the memory bank.
One set of 16 memories are stored on the radio and when you connect the phone or BT speaker microphone these are BT over to the app or microphone.
I have not seen it on mine for some time.
We are looking at bug found that when you have 2 channels open the id or aprs can be tx on channel A.... The development department is looking at it.