Export recently stopped displaying settings panel ("video", "audio", ...).
Starting a few weeks ago (after some Adobe-fed update of Premiere Pro CC) I no-longer see panel for reviewing and changing the export settings. So, in my screenshot below, the "Effects, Video, Audio, Multiplexer, Options, Publish" panel won't open. As a result, I'm stuck with the default settings from whatever format and preset I chose. Chosing different export formats or presets makes no difference. This problem is the same for me for both Premiere Pro CC v12.1 Kentos, and in Premiere Pro CC v13.0.1.

I can't find any settings (Edit > Preferences) that might explain this. And I can't find any hidden GUI interfaces that, say, twirl down the missing panels.
Any ideas?
Thanks!

