It's at the dealer and they are trying to replicate the issue. I just want to get it documented with the Acura engineers for a possible software patch. If the system would reboot at each start there would be no issue. I loaded the drive per Jon's instructions from years ago. No issues playing properly formatted files at all. It really just a minor annoyance, but it bugs me. Looks like you got a good one Bob.I have a 2022 RDX and I have never experienced Any issues with drives not being seen. Certain files won't play but those are 192/24 files. Also there is no gapless playback while playing files. There is a short (1second) gap between each track.