Project not opening after update ( usual workarounds not working!)

Hello all,

I’m having trouble opening a project after updating to Premiere Pro version 25.2.1. The loading bar gets stuck about halfway through when trying to open the project (screenshot attached).

I’ve tried uninstalling and reverting to version 25.0.0, which does work.

However, in 25.2.1, I’m unable to open a new project and import any of the sequences or the full project by any means.

I use the Maxon Red Giant plugin for colour grading and effects, which I suspect might be causing the issue.

Any support would be hugely appreciated—this is a large project and I’m so close to finishing it!