hey. i have a guitar that i bought used. i noticed it had an issue with pinch harmonics on the d string. also if you play it without an amp u can hear some harmonic type stuff going on when just playing normal fretted notes. anyways i can play perfect pinch harmonics on every other string but on the d string you can hear that i attempted a pinch harmonic and then it just dies instantly. i took it in and got it professionally set up and intonated and got a new set of strings but i still have this problem. only thing i can think of is maybe get my frets leveled? idk. i have no clue what to do with this guitar any more. any advice would be greatly appreciated.