good night, in 2014 I bought a majesty musicman with serial number M02902 in samash of the dolphin mall in miami. Although the operation of the guitar is optimal, whenever I adjust it, after 1 or 2 days, the arm makes a U-bend, this has prevented me from using my guitar as often as I would like due to the mismatch that is generated, this affects the octavation of the guitar and its tuning, my guitar isn’t exposed to high temperatures or high pressures, do you know what is happening? Thank you for your attention