Almost all video files are black and have no audio

ChrisRK wrote on 8/15/2013, 9:16 AM
Yesterday i was working on a video project i have been working on for a week now without any problems, but today when i opened it, almost all the video clips where black in the preview window and become black when i render it.
Some video clips stutter in the preview but appears black when rendered.

All the pictures are appearing as they should and the separate audio tracks works fine.
No files has been moved or modified and still plays fine in WMP.

I've tried to reinstall Quicktime and Movie Studio 12.
I've tried to disable resampling on the video clips And replace\re-add video clips with no luck at all.

However, when the video clips are added into a new project, they work fine. But that doesn't help me as copying and pasting the whole project into a new project won't take any effects or track motion with it.

Does anyone have any solutions to this?

Comments

Steve Grisetti wrote on 8/15/2013, 10:08 AM
What model of camcorder is your video coming from and what format and resolution is it?

Also, have you gone to the nVidia or ATI web site and installed the latest drivers for your video card? Sometimes that's all it takes -- especially right after Microsoft patches Windows (which they did in a big way this week!).
ChrisRK wrote on 8/15/2013, 12:07 PM
I have 5 different cameras the video clips comes from.
A Nikon Coolpix AW100, a chinese-brand car dashboard camera, an iPhone 5, a Casio EX-Z1050 and a HTC HD 2. (A good bag of mixed file formats)
All the video files from all the different cameras are affected by the problem, and now after a few restarts it seems like the video clips are randomly working.

I'm currently running the latest 326.41 beta driver from nVidia and have all the latest updates for Windows 8.

I haven't installed any new updates, software or hardware since yesterday, so nothing there could have messed up anything.
Steve Grisetti wrote on 8/15/2013, 12:56 PM
You didn't let Windows automatic updates install this week?

Apparently a number of the updates were buggy and they've been causing a lot of problems. Microsoft is rushing to fix them.

ChrisRK wrote on 8/16/2013, 3:19 AM
It seems like Windows did install updates at the 14'th this month. But the video files was working fine yesterday (the 15'th). If those updates might have caused this issue i guess i will have to wait and see if some newer updates will fix it.
Luckily i have no deadline for my video project so i can wait a week or so before continuing.