Blu-Ray player app totally broken for 3D discs now?

Yes it runs other bluray and 4k uhd discs just fine. I found another thread with this issue being troubleshot that seemed abandoned.

After looking around it looks like an issue with the bluray app and LG tvs that support 3d. It initially worked just fine two years ago so something changed in the app.

All of the sudden my xbox one is having massive problems reading 3d blurays (sometimes it gets past the menu and freezes, sometimes it just locks. Testes the discs is a standalone 3d player i no longer use and the discs are fine. I read somewhere else that
this was an issue a while back but apparently it hasn’t been patched. When i first got my one S it played the 3d discs fine.

Does it run other blu ray discs ok?

Yes many times. I also tried deleting the bluray memory cache.

Sometimes i can randomly get a couple of discs to play properly.

Have you tried uninstalling and re-installing the Blu-Ray app?