Hi @JP2512,
Sorry you're experiencing issues. I'll ask the team to take a look at your reports.
A few more details that could help to know: Did you recently update your computer at all, and are your drivers up-to-date? What kind of media files are you working with (file type, source, etc), and is this happening with previous projects or projects with different footage? Where are your media files stored?
Sorry for the frustration,
Dani