Render/Media files vanishing from the drive on shutdown/startup

[David Jakubovic]

I am having this same render-files problem.

Every day now for a week, a large portion of my timeline, one that has a bunch of stuff to render, keeps becoming un-rendered as soon as I turn the computer off and back on again. It is a 15 minute section of a more or less one hour timeline. I am working on a few projects at once, from different drives, and it is not doing it to other projects – nor is it doing it to other portions of the problematic timeline. I noticed this thread is from many months ago. Have any of you guys figured this out?