I got the same thing, it banks the ore. It's status changes to: interacting with ladder but the cursor doesn't move away from the bank all button... Does not give any error messages whatsoever. When manually closing the bank it continues like nothing happened. Seems like it's unable to click near the ladder whilst the bank screen is still open.
Also it would me more human like to click the hopper thingy right away when going down the ladder, instead of first clicking the minimap then clicking the hopper.
Bottom floor works perfectly, 26k xp per hour averaging over 12 hours straight till I reached 72, tried the upper floor before letting the script rest for a bit then it got stuck...
Oh well, might take break from mining for a bit and buy your agility script
Edit: forgot apple doesn't print screen the cursor, if it matters.. it's on top of the bank all button