Ok - I’m back at 1.12.3.4973 and I have recreated the issue - see attached logs.
I started the programme at 18:07 UK time (GMT+1):
- after pressing play the image immediately freezes whilst the audio is playing for about 18 sec
- at around 35 sec there is a brief moment where the video freezes
- at 2:04 you see some rendering artefacts
- at 2:28 the video freezes briefly
- at 2:36 there is the most noticeable issue as the video freezes until about 2:44
- at 3:16 there are some rendering artefacts for a few secs
BTW, no matter how often I repeat watching this recording the issues always happen at exactly the same point and in the same way.