Have you come across where bis-f does not detect your admx settings? One of my engineers showed me an issue today. The gpo values are there, policy is applied when he runs it, it says no admx settings found. The big thing then is since it’s through rds it bails out. I run this hundreds of times and haven’t seen this on any of our other servers. Strange thing as well is it ran previously, like maybe a week ago.

If you have trouble with admx. It looks like more than an AD issue instead of BIS-F. The settings are written to the default policy registry location

the only reason i believed it was something with bis-f is that the gpo registry keys are present on the server where you mentioned. I was able to use a shared configuration to achieve the same but this is a totally one off thing that happened.