@ChuckPa Sadly I can confirm that movie playback issues detailed in the linked threads continue in v1.15.3.876. Here’s how I have things configured:
- Separate Movies and TV libraries, with content (for the most part) organized according to Plex standards by Radarr, Sonarr respectively.
- A third separate videos library, used to store the Pre-roll clips, containing some old IMAX intros from Demo World.
- The Pre-roll video setting contained the URL of a Media Details page, in my case, this was:
http://192.168.1.3:32400/web/index.html#!/server/e0f68e714e7078b1118361dafddbc3be0ff441e5/details?key=%2Flibrary%2Fmetadata%2F34179
I’ve gotta say, this is really a shame – I have used these exact settings for several months without issue until upgrading to PMS v1.15.3.835, and I have no clue as to why the pre-roll URL suddenly stopped working.
In the thread linked above, my speculation is a switch from relative paths for the pre-roll videos to requiring absoolute paths in the newer releases. Am I on the right track? If so, and if the URL I used before isn’t an absolute path, what should I use instead?
I have also attached the PMS Log ZIP captured just after reproducing the error, per your request. Of course, let me know if there is anything else you need; I’m happy to help. 
~AM
