Hello. Ive noticed some issue regarding my Low E string. The 4th fret (G#) sounds dead and weak in comparison to anywhere else on the string. I've tried raising the pickup height, rewinding the string to make sure it's not twisted. Tried different eq settings on the amp etc.. I also did an experiment, i dropped the tuning to D checked the sound of the 4th fret. It wasn't dull, but when i checked 6th fret then (which is the G# again) it sounded like on the normal E tuning, dull and dead. Is this a problem with my string? Or maybe dead spots on the bass? Or is it just the G# which is less defined by nature?