If that doesn't work, try resetting the Workspaces: Reset a workspace Reset the current workspace to return to its original, saved layout of panels. 1. Do one of the following: • Click the Workspace menu icon and select Reset to Saved Layout. • Choose Window > Workspace > Reset to Saved Layout. from here: https://helpx.adobe.com/premiere-pro/using/workspaces.html
You're a genius. 🙂 But to be clear, I'm using Windows. The Alt key did not work when I clicked on the shortcut. However, when I opened the file folder containing the EXE and Alt clicked on -that-, it did the trick. It doesn't -say- it's clearing preferences, but apparently -something- happened.