I recently picked up a great USA Peavey Cirrus that is able to get very low action (2/32) cleanly up and down the neck, except for two notes on the D string. The 21st and 22nd frets are completely choked out on the D string, yet the notes above and below are clean. If I gently play the note with my finger right on the 21st fret, I get a C#, which is the 23rd, but when I do the same on the other strings it is obviously the next fret up that plays, not two up. A straightedge rocks just a tiny bit when going across frets 22-24, so it would seem that the 23rd is a bit high in the area of the D string? The bass has very little wear, so I can’t imagine it would be a worn fret way up there (?). Raising the action lessens the choked-out-ness but it’s still there. The fret doesn’t appear loose or pulled out, so what’s the best method to try and resolve this? I gently tapped the 23rd with a mallet but didn’t go crazy with it and didn’t resolve it. I rarely play up there but I’d like to fix any issues, especially since now that I know they choke out, I can’t help but play those two notes. Thanks in advance for any tips.