>but I didn't change anything
Actually not quite true.

My renderer was EVD, I changed to EVD custom (why not,..) and it crashed.
I loaded last known good configuration, set to EVD and hit apply.

So I changed it from EVD and back again.
All good now.

and now it works ok.
It's almost like looking at the codecs info fixed it - I know how that sounds but I didn't change anything.

My video renderer is EVD.

A bit more info, if I go full screen then I get a flicking box top left but the rest of the screen is ok.

RE: What video codec?
Err not sure, under video codecs, the top 2 (mpeg-2 and H264 AVC) say Microsoft DVT - DVD Video decoder.
The others are DMO decoders..

I don't know how I change renderers ...

I have encountered a problem where all channels are flickering (not a tuning issue)
So I removed and reinstalled the next progdvb version ProgDVB7.32.7Std.exe, but it's still the same.
latest windows 10 patches installed
latest amd rx480 drivers installed.