Extension Updater - Not Working (does nothing)

Tried force clear cache, does nothing. FYI, this happens right after the DW, or if I exit that (see this issue Distribution Wizard - Global Administration: Message Stream? - #5 by laurin1) anytime I try to run it then, even after a restart. Meaning, I don’t see how it would be possible that another EM job is running. I have not removed or installed any new extensions. I have been trying to upgrade from 11.5 to 11.6.1 to 11.7, and though most of that has finally worked, the DW never completes (as far as I can tell) and the EM no longer works.