Not able to change codes on Yale lock (YRD446)

I haven’t tested it recently, but user codes have been working fine with a BE469 though Habmin or the REST API. The only trick I recall was that they had to be added/removed in order. If you add one with a gap in the slots betwen it and the previous one, or remove one from the middle, the codes got corrupted. Does this sound like the problem you are experiencing?