Media Encoder 14.5 just won't let me import any file at all. When I drag and drop a file it won't appear in the queue, the cursor is a hand with the "no" sign...
I'm working on an 2019 iMac with macOS Catalina 10.15.7
I had the same problem again since the first post and even the older versions would not let me inport. I tried importing using the command+I shortcus (or through the File menu) and it works.