Premiere Pro not exporting

Premiere Pro used to not export anything every now and then but now it’s pretty much all the time. When I send something to Media Encoder it doesn’t even register and when I try to export in Premiere it will either export a 5 second MP3 for about half an hour or just won’t do anything at all. 

I have tried absolutely everything but with no hope. I’ve got a very urgent deadline and so much to do, it’s so crazy for the amount that we spend on the Adobe Suite. 

A huge part of my editing job is also exporting from After Effects which is also doing nothing at all. 

I’ve deleted my cache a million times, tried editing the project in a new sequence, messed with every setting you can imagine. 

The only thing that works is to work from a new user which has it’s own issues as most of my workflow includes things that I don’t know how to send to another user so working from the other user has also been really difficult.

I’m on an Apple M3 Max, 48GB, using Sequoia 15.3.2 and version 26.3.0 of Premiere Pro