Just in the middle of a project and Vegas (Pro 12) decided that it doesn't want to preview these files any more. Do you have any ideas what I could do? Id rather not convert the files as I've used them as they are for years without having to do anything to them?
Is this the exact same video that used to work? Have you changed anything (ie, upgraded to Windows 10) since they used to work? Have you installed other video editing software??
Which version of Quicktime do you have?
What model of camcorder is your video coming from and what resolution is it? Do you know which codec the video uses? One of the challenges of working with MOV files is that an MOV can be composed of any of several dozen codecs and resolutions.
After a number of hours experimenting I have narrowed the problem down to three iphone clips.
When they are in the project they preview fine for a minute or so then they deteriorate to sound only and a black screen. When this happens all iphone clips in the project except one which is fine go the same way. If I close the project and try to reopen Vegas it crashes on opening. It will not open with these files in the project.
So I move the files so that when I open the project again I get the option to ignore these three problem clips and its fine again......until I bring them into the project.
I opened a new project with just the three clips in it and rendered to a new movie clip. But when I bring in the new rendered file the same thing happens which is odd as the clip is a new format.
These three clips seem to corrupt all the quick time clips in the project. If I delete them and reopen the project its fine.
Not sure what to do now. I guess the simple solution is not include them.
My issue with the problem clips is that they will not preview on the timeline unless they are the only clips in the project. I can render them to any format it seems (provided they are the only clips) but I haven't tried MXF or XAVC yet so I'll give that a go too.