When playing video, having a look at the debug log, I see the following error which leads to the video either pausing or freezing completely. Stopping and restarting fixes the issue.
Code
2019-06-23 12:47:00.141 T:4067607408 WARNING: ActiveAE - large audio sync error: 2718.006809
2019-06-23 12:47:00.147 T:4067607408 WARNING: ActiveAE - large audio sync error: 2719.618393
2019-06-23 12:47:00.152 T:4067607408 WARNING: ActiveAE - large audio sync error: 2718.888809
2019-06-23 12:47:00.157 T:4067607408 WARNING: ActiveAE - large audio sync error: 2718.835851
2019-06-23 12:47:00.162 T:4067607408 WARNING: ActiveAE - large audio sync error: 2715.393546
2019-06-23 12:47:00.168 T:4067607408 WARNING: ActiveAE - large audio sync error: 2716.000756
2019-06-23 12:47:00.174 T:4067607408 WARNING: ActiveAE - large audio sync error: 2715.263547
2019-06-23 12:47:02.958 T:3146752880 ERROR: CDVDAudio::AddPacketsRenderer - timeout adding data to renderer
This happening on local files.