Not sure if Server or Client that is causing DoVi files to not play correctly

I got a Shield yesterday and got it updated all the way and thought I’d look at some BD rips I have and run them through MakeMKV again and see if I could get DoVi working on them as I have an LG CX. So I now have a handful of rips of both profile 5 and 7 and none of them play in DoVi. If it’s a profile 7 then it plays in standard HDR10, if it’s a profile 5 file, then it plays in SDR with Green and Purple everything.

Plex shows they are DoVi files under the Get Info tab.

I started thinking it was the Shield or the rips, so I decided to do some digging. I got a hold of one of the LG Dolby Vision files as a demo and it’s a profile 5 file, and it does the same thing. Plays in SDR and with wacked out colors.

So at this point, I really don’t think it’s my files or my TV/Shield. From my understanding at least one of the two of them should have played it no problem correctly.

All the posts and threads I can find that are remotely recent all make it sound like I have every single item needed to successfully get something to play in DoVi, so I must be missing some crucial piece of information. I do notice that despite the Server Get Info showing it’s a DoVi file, the Plex screen for the file does not. It says the profile 5 files are just 4K files and the Profile 7 are 4K HDR.

All devices are up to date, Shield Pro is on the Beta update and set for 4K60 DoVi + HDR10.

Server Version#: 1.23.1.4571, Server is a Windows 10 Desktop. Server does not transcode anything.

Freesync is disabled on the TV (my understanding is the LG tvs do freesync or DoVi, not both)

Any help is greatly appreciated.

So in doing further testing, this is a 100% plex issue, I just wish I knew where.

I setup an emby server for testing on my laptop, plays every single DV file without fuss through the Shield. So this has to be a plex issue. Since neither the plex app on the LG or the Shield Pro work, I’m really leaning towards it being a server issue.

What do I need to troubleshoot next? I couldn’t find any settings that relate to DV.

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