Hi John,
Am assuming you are running latest Ipad firmware, Master Fader, and Master Fader has updated firmware on DL1608.
My Ipads are pretty solid to router and DL1608. If I leave the cover closed long enough it does 'reconnect' and 'synchronize current state'.
I believe this is normal - consider that another Ipad or Iphone might be connected and making changes while you are not connected.
Good health, Weogo