My skip current target is prt scr on my win keyboard but show as F13 using mac - While routing has arrows to nods but if i use the arrow keys to travel carbonite keeps skipping to the next nod over and over. If I use the mouse buttons to travel it fine. Before my last update it was working fine.
Have you tried rebinding your key to something else than PrtScr(F13)? If you, for example, try setting the keybinding to J, does it still skip nodes when you use the arrow keys?
Then it's obviously something to do with that particular key.
J was just an example I chose because I know J to be unused by default. Feel free to set the keybind to any other key you desire (me, I have it bound to ½, which on my Swedish keyboard is just to the left of 1, and is the shift modified button of the one I use for auto-run).