Sometimes gets stuck here but recovers by itself after rotating camera angle randomly: http://prntscr.com/cl85pm
Draynor course. Not sure what obstacles they are and I can't look at the logger at the moment, however Im sure that the bug relates to what other people are experiencing.
Edit: I figured out what it is. Because you can adjust how much you can zoom in your game, the script will struggle when you have zoomed in a certain amount. Varrock is working perfect for me.