The bug is when an action has to be performed after someone "had to be allin". Like BB folding to a shove from SB. Notecaddy doesn't (always?) detect the situation and shows 0 opportunities.
I found a workaround where I uncheck "Had to be ALLIN" and instead say that the raise has to be > 80% of stack size. Works fine with that trick.
There is also a small bug in the notecaddy replayer: when someone goes allin they are shown with some small amount of chips still in their stack. I don't know if it could a sign of a handreading problem like the bug with the effective stacks from the previous version.