We use RF Ideas RDR-70H1AGU readers here. A while back my customer ordered a new batch of prox cards, and we had to increase the ID code Bit count from 16 to 22, to allow for the higher numbered cards. I've noticed that some of them, from time to time, have reverted to 16 bits. I've searched and can't find anyone else experiencing this issue. My customer did have a scheduled power outage recently, and today I discovered 5 devices that had reverted to the default. Has anybody experienced this or know of anything that may cause it?