Bern,
I have had it catch around the back of the spreaders on the water until I just put a line from one side of spreaders to the other and threaded the halyard thru it so it would stop it from going to the wrong side. It did this when the kite was down and halyard not under load. I would find out when it was really hard to pull up.
If you have proctor spreaders you can thread the halyard between the two side arms and the result is the same.
Regards,
Phill

I know that the voices in my head aint real,
but they have some pretty good ideas.
There is no such thing as a quick fix and I've never had free lunch!