How's your hardware? Mine is not doing that, on my previous system I7-6850, or my current 12th gen with 64gb and Samsung 980pro one for media, one for PP.
What's your footage light? ProRes, h264, variable or constant frame rate?
Hardwares fine, its up to date on latest tech. and I'm pretty sure I'm using constant framerate at 60fps
OK then, the software's fine.
could it be a project compatibility issue, as the project I'm trying to access was created on Apr 11, 2022
Any plugins installed?
You can create a new project and then IMPORT in the current project, it might help.
I did that the new project loaded fine before importing, when I imported the file it failed to load and glitched again
Convert file with Handbrake, see how that goes.