I have been using PMS on my Drobo5N to watch movies locally and remotely for close to a year now. It was a great experience up until about a month ago when it began attempting to transcode almost everything remotely even movies it previously didn't attempt to transcode. Here is my situation:
Before about a month ago:
My Drobo5N PMS would stream all of my library to my local Apple Tv without attempting to transcode video. This was pretty much the same for my local Roku and iPhone app.
I have Plex Pass and I could watch previews and extras without PMS attempting to transcode anything locally. I never tried watching previews and extras remotely in the passed so I cant evaluate that.
The vast majority of content would play without attempting to transcode (about 70% of my library would play) which is fine and I was happy and whenever it couldn't play a movie without trying to transcode I would get a message saying that the movie couldn't play which is fine.
After a month a go.
Movies still play without attempting to transcode but now if I try to watch a preview or extra the PMS tries to transcode them and I am stuck watching a never ending loading screen.
PMS is attempting to transcode every single movie, preview and extra leaving me stuck watching a loading screen that never ends or a finally plays a short clip for a few seconds before loading screen returns.
Because the Drobo5N can't transcode video well, if at all, I am stuck watching a black screen.
All my devices are set to play "Original, 1080p HD" with Direct Streaming and Direct Play on.