Hmm. A few weeks... I'd talk to the dealer.
And I'd also try the permatex again after sanding/filing the holes lightly and then cleaned with pure acetone.
If everything fails you still have options but it gets more complicated. One is simply replacing the boxes with regular fcs plugs or the fusion box. If you're handy you can do it yourself or otherwise andy surf or windsurf repair shop can handle it. Possible you could even get ahold of the new slot boxes and convert the board so that it can also be ridden as a twin, should you want that.
But try the simple (permatex again) solution first. I'll try to ask around and see if other have had this problem and how they solved it.
Good luck and keep in touch.