[SOLVED] Strange Video Playback Problem

[Skywatch]

Well, All devices worked except for rpi. Android, Windows, Bluray player all worked fine, so not server or cable fault.

I decided to up the kernel from 4.9.91 to 4.9.96 to see if it would help... It didn't.

Then I decided to enable staging and try with latest updates.

Now it works fine

So it was a pi specific problem, maybe related to the kernel and smb/cifs side of things (that's my conclusion anyway).