If it stops, then turn off 'stop when out of runes', since OSBot's 'canCast' method is not the most reliable.
Sorry guys, I will write my own 'canCast' spell just like I had to write my own anti-misclick 'castSpell' method.
I'm not even going to post bug reports anymore, just going to write my own custom methods, clearly OSBot's API isn't working well
new update coming soon