Im not sure either of these are problem issues, but…
The movie is tagged as Dolby Digital Plus 5.1 but my AVR displays Dolby Atmos PCM (nice surprise though). Down at the bottom of the detail screen is see HEVC Dolby Digital Plus 5.1 . I guess that’s the “Moved Movie Details…” but will some details be at the top of the screen and some at the bottom? Seems odd.
Edit: Plex’s label is 5.1 EAC3 for the same file. I do understand that label is always a crapshoot for actual Atmos.