I've tried in a previous post with nobody able to resolve my problem. To cut long story short after having to reinstall Vegas pro 12 certain files were offline and couldn't link them back into the project. The one thing all the files have in common were they were in Camera slow mo files 50fps shot on the Sony F55.
To be exact XAVC Intra HD files - strangely were in the 4k folder.
Even started new project but vegas cannot read them or capture them into my project.
Thought this strange as could before no problem and would have thought project setting remain the same. Thing it could be with my preferences or project settings but they shoudn't have changed AND I still can't access these files starting a new project. Surely somebody has had a similar problem????