Youtube oembed not working

Several days ago I still can embed Youtube video, but it started to display higher than normal size and I have to resize it manually by editing the database.

Today I embed a video and it stops working. Only displays URL text to the video. When using [embed] it transform into a link. Already try different URL, not working too.

Trying to update to 3.6.1, but still no luck.

Is there’s someone can help me here?

Thank you.