I am mortified for my poor English
... but, I am trying to tell my personal experience.
After a HD upload to Youtube, same video is passed to catalog, without ask from me.
The message before having video in the catalog is related to using of HD rendering and the need for PD to enable shadowing ...
Sorry again but in the italian version translate the setting and the software message back to english is not easy.
The result was the green screen in preview section and in multimedia preview.
NOTE only for preview in HD! Preview on low res. continued to operate. Preview to multimedia still on green screen.
Tryed to reinstall and update sw. without result... but, in another user profile the problem is not present ...
Mhhm ... in the affected user profile tryed to reset all to standard setting. No result.
Reinitialized user profile from 0, and the problem disappear .... until import of HD video pubblished before !!
Then I have green screen again ...
At this point I'm tryed to change some setting in the advanced video driver setting windows, until problem is solved.
Sorry again if someone do not understand what I write, but English is not my native language ...
I would like you tried to write for me the recipe for "spaghetti alla bolognese" in Italian