I suspect the (high bias, very tight) belt may retain a memory when it sits on the smaller motor shaft, combined with the release on the redesigned clutch having a very short throw, barely giving the belt any slack. The casting on the inside of the wheel ring is rather coarse along with a few screws dragging on its interior compiling the issue. All fixable I suppose but you decide if it's worth the "try".
Also had problems with the WP32 the last few days:
We sailed over to the Bahamas
and halfway across the Gulfstream the WP started making expensive noises so I disconnected the clutch to investigate and hand steer. The wheel was jammed and I broke it loose to regain control of the boat. Then the black wheel on the WP32 came apart with little parts
and pieces flying around the cockpit
We steered the old fashioned way for the remainder of the journey and after a few days at anchor
I took the WP apart: Found the problem: Inside the black wheel "cover" there is a plastic "slot" or groove for the belt. (Lets call it the big wheel as opposed to the little wheel that attaches to the motor. ) The big wheel was cracked 90 degrees to the travel of the belt. The crack was about an 1/8" wide. Enough so that the belt snagged and got stuck on the sides.
I filled in the crack with Marine-Tex and sanded smooth after it cured.
Then used dry Teflon Lube on the belt and the big wheel.
Put the thing together and it works better than new, smooth running and no sticking or jamming tendensies.
Also did a fresh adjustment of the belt, but need to get a new belt as the old one shows wear and tear after snagging on the crack.
The above fix should solve similar problems and should last a long time.
(Crossing my fingers here...)