I am finding media encoder to be very slow and once I did this recent update it would now open either as stand alone or through the 'Add to media encoder'
I found this solution. Do the update, quit everything, unistall media encoder, then do a fresh install. Works absoulutely fine now.
2. Quit all adobe apps
3. Uninstall media encoder
4. Fresh install if media encoder.
Should all work.
Sorry I was meant to say 'it would NOT open'