Media Encoder is not working. I updated my MacBook Pro, and the app and have uninstalled and reinstalled Media Encoder twice with no luck. Need to upload a video and cant
Same problem here, I'm using iMac macOS Catalina 10.15.7.
I've fixed the problem. I deleted the third party plugins which was located /Library/Application Support/Adobe/Common/Plug-ins/7.0/MediaCore here. now it is working.
If you are using Windows you may find the plugins in this folder ; C:/Program Files/Adobe/Common/Plug-ins/7.0/MediaCore
I hope that works for you too.