Hello,
I Hate this problem.i am editing a music video and the files that i have is .MOV (H.264 codec) everything was running smoothly then suddenly the preview window became black..
some thoughts on the problem.. vegas originally has no problem with the codec and thumbnails are there on the timeline, sometimes the preview flickers black before turning black completely, if i restart vegas i can preview a minute or so then turns black again.. if i work for a longer period on my laptop (on other softwares..) then opened the project files again it turns black faster .. in a few seconds, i tried to move my media to my friends workstation and opened the project files it was black completely i couldnt preview any part of it.
i have tried some suggested solutions:
-downgrading quicktime
-disable re-sampling
-setting max ram preview to 100 or 0
-made sure the video was not muted
-turned off GPU acceleration
-copying all media events to a new project
Please fix this.