Video [Q] Problems with video thumbnails in gallery after update CM10.1

I've recently rooted and updated my phone to CM10.1 with JB 4.2.2. Was not quite pleased with the way the gallery changed. First, the videos I've downloaded went grey (only some appeared), the camera images and other camera videos are fine though, can't find my video without tapping one by one, I can't even see the names. also, was wondering if the update doesn't allow my videos to be viewed in the side unless I've turned on my rotation settings (which is quite annoying).

I found solutions like deleting inside .thumbnails folder , used busybox to allow permissions, clearing cache of my, rebooted my phone a lot, nothing works..

Can you guys help?

Here's what my gallery looks like: