Ok, thanks. But I noticed that disabling all youtube definitions did not help with the problem: See this:
http://www.sims3forum.de/die-sims-3-...ire-liebe.html
I have disabled all youtube definitions, and still it's screwed ...
Why?
PS. When I manually edit all older posts with youtube videos inside then it works well. But I can't manually edit all 10000 posts
The weird thing is: everything was working as expected until a few days ago. And we did not change a thing?!
UPDATE:
needed to update the post cache. seems to work now. but do you know how to get a larger youtube video window?