My PleX server last week, running on CentOS 7 in a docker container, seemed to have trouble with streams that previously played fine. There was a kernel update

My PleX server last week, running on CentOS 7 in a docker container, seemed to have trouble with streams that previously played fine. There was a kernel update for CentOS 7.x recently, too. Now I'm wondering if this is the cause. The container hasn't been rebuilt in many months (like 7) and the only thing that has changed on the machine is CentOS updates.