It is telling when "Actions" is not even included in the "category" menu.

Load a saved Action set that includes Actions with keyboard shortcuts
Perform an "Undo" in AI
The Actions you just installed will be deleted
Perform a "Redo"
The Actions will reappear but without keyboard shortcuts.

First: "Undo" should NOT affect the Actions.

Second: What is the deal with the lost Shortcuts??????

I am looking for a compelling reason to "upgrade" Illustrator. I am told this bug still exists in CC 2019!