Hi. Longtime totalspaces user here.
I’ve noticed in the last two months that if I go into overview and then very quickly select a window to click on a space, that I get a hang. I can get out of the hang by holding power for a few seconds (not long enough to induce a cold boot).
My totalspaces settings are for maximum speed; no transitions, etc. So maybe I’m tickling a bug more often than others because I interact with the items in the overview very quickly.