Encoder not working

[mossem23136726]

The past year or so my Media Encoder has not been working at all. It simply will not open. Not even from Premier setting up a batch. I have tried to downgrade, unistall, re-install, many times. Tried going back on OS also. Nothing works. 

What am I not doing to make this work?

Right now I am on MacBookPro from 2018, 2,9 Ghz 6-Core Intel Core i9, 32 GB 2400 Mhz DDR4.

mac OS Big Sur version 11.4 

And most recent update of ME. 

Still the same response. Nothing. Like a dead program. icon jumps for a little while in the dock. Shows the splash screen for a while and then nothing. 

[Joost van der Hoeven]

Are you using any 3rd party plugin's? You might need to remove or update them. CoreMelt is a particular one, but also older versions of Red Giant can cause issues.