This is a semi-know bug, and Ron (one of two developers) is currently looking for more information regarding this issue. Please respond to this thread to aid in the fix of this bug. viewtopic.php?f=5&t=2746
This could be accidental, but if you can log back in there shouldn't be too much of a problem. I know I have problems with the "can't use on two devices at once" bug, is this the problem you're having?