Space switches back to previous space when using hotcorner "Show overview grid" to switch spaces

Just upgraded to the latest (2.7.12 registered) and every time I use the hotcorner to bring up the overview grid and click on a different space, I switch to the new space and immediately switch back to the previous space. If I use Command+arrow keyboard command, this issue does not happen. How do I resolve this?

Mac OS Sierra 10.12.6

No support…