Stuttering "Media Offline" bug

I've had this issue in a few projects now, where a clip will stutter between linked and 'Media Offline' really fast . I'll re-link the clip, and it'll play normally until I make any changes to it in the colour tab, and it'll go back to this, or completely unlink all together. At worst, this has also caused DR 19 to crash and close entirely.

Which camera and which hardware?

Definitely seen this before.

This is likely an issue related to playback of mp4 files. I am trying to remember the exact issue but as I recall it was related to an expectation that my Nvidia graphics card was expected to decode the problematic files. Again, trying to recall the exact problem, but I think there is a "decode" option checkbox for GPU in Davinci Resolve that can solve this problem.