In a multiple rack system, backup looks do not play in all racks when they have been recorded. Switching the CEM's between the racks does not solve the problem.
- Check priority of the backup looks to make sure that they are at a level (high, pile-on, low) that will allow them to interact properly with the other sources controlling dimmers in the system.
- Check to see if some CEM's are in advanced mode and others are not. If they are not, set up units so that they are all in the SAME mode.
Or write proper config for system and download to CEM's.