new server update making movie buffer at about 2/3 of the way through and stop working?

since the new server update my plex media pauses about 2/3 of the way through and stops (like it trys to buffer but wont). have role backed the server version and still happens and suggestions?

also changed the server computer so have tried on 2 different computers
OS Windows 7 and tried windows 10

Same thing here. Not sure if latest Plex update or latest Windows update as I did them one after another.

i think its a Plex update i have tried it with a fresh windows 7 install with no software but Plex server and drivers and still does it. that being said i have tried a 2015 Plex server version to the same problem.