Ok, I’m confused.
I for up this morning, fired up my Zonbu, (reveling in how quiet it is) and hit YoTube again.
I double checked that my cache was set to 100MB, then I started clicking on random videos.
Everyone of them played properly.
I’m confused. I tried a reboot last night and had all kinds of problems, now its fine.
I’ll double check in a while to make sure an update wasn’t done since last night, but something odd is definitely going on here and this exactly the kind of strangeness you buy a Zonbu to get away from.