Yeah looks like that may be the case. Unfortunately anytime I have upgraded to 6.10.0-rc1 my plex server starts to have issues playing my media files that are nfs mounted from my unraid box. Unraid shows no io issues or cpu issues, but the load on my plex machine goes through the roof, and a simple downgrade to 6.9.2 fixes it, so I havent tried it for a 4th time yet, as I was waiting for the next RC to come out.