PMS on Synology NAS

Server Version#: 4.34.4 (Synology 920+)
Player Version#: 7.7 (Apple TV 4K)

Having issues playing back media on Plex from a Synology 920+. Certain files will only play back locally and many will not play at all (locally or remote).

I have hardware acceleration on. When I played these same files through my Mac Mini as a PMS, they played fine through my Apple TV & web browser without any issues, but now will not play if it is through the Synology 920+.

Wondering if this is a settings issue because my sense is the 920+ should be able to play these files without any issues, especially on my local network.

Looking for any help! My logs are attached.

Thank you!
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