Hello, I have a 2017 KTM 300 EXC/XC-W and the screw caps of my WP Xplor forks have been replaced (by a local mechanic) with the ones with preload adjusters (that comes on 6 Days models and Husqvarna). The problem is that, only at the left compression side, the preload adjuster is really hard to turn from +0 to +3 and impossible to turn from +3 to +6. All the work was done with the proper tools and tightened at the correct torque by the manual. If the fork is removed from the triple clamps it helps a little but it is still much harder to turn than the right side rebound fork. Any clues of what might be the problem?