Cannot Move Between Spaces

I cannot seem to move between spaces when using KM.

Specifically, per the graphic below, I can successfully use the keyboard to move left a space (ctrl left arrow) and move right a space (ctrl right arrow)

42%20AM

And I can execute the KM script as noted below. I know the script is executing via the hotkey - I'm sure that is not the problem. The problem is that the script, once executed, will not execute the ctrl right arrow command to move to the next space (same problem with the ctrl left arrow command).

19%20AM

This is under Mahave 10.14.

I should also note that I have not tested this in many months, but it WAS previously working.

Any input appreciated!

Yes, this appears to be an issue/bug in Mojave. It has been reported to Apple.

hmmm...

I'm wondering if there is any work around for this to jump to the last space on a given monitor, whatever that might be.

If you change the hot keys for Spaces to use letters, then it should work - it is only arrows and function keys that fail I believe. So I think you can use the Control-Number key or whatever to go to a specific page and I believe that still works.