jdfoils said..
After seeing a very similar failure locally and observing how these boards are constructed, I have come to the conclusion that this is the inevitable fate of all Naish wingfoil boards.
Luckily it is an easy repair and by adding proper reenforcement around the foil tracks along with higher quality tracks the rest of the board can be around a long time.
Not 'all' Naish wingfoil boards. The problem seemed to be with quite a few of the 'Hover' boards built and sold through 2022. The reinforcement was fine, and the tracks are ok, but from experience, the lay-up in the channels that the tracks sit in, was often patchy and not gripping the tracks fully. I've had three since that time, no problems.