We would like to ask you to clear the memory on all of your feeders, and then relearn each cat into a different feeder than it was originally.
To clear the memory on your SureFeed and reset the feeder to factory settings, holding down the Add Pet button for 10 seconds (until the light starts alternating red / green and the lid opens and closes).
Once you have performed the factory reset - please try relearning a pet into a different feeder.
A reminder on how to learn a pet:
Does this solve the problem?