Something weird on YouTube

Hey, everyone! sorry i was gone for a little long (again), but, this is where it get's interesting, i think: i found out that YouTube is now hosting an odd ad that's like half black screen!

what it looks like to me:

and, what it really looks like:

weird, isn't it? the real one is the black screen error, and the other one, i edited in paint.
see y'all later, and...
HAPPY HALLOWEEN!
:)