[kudama]

Hi everyone,

So I took my 12 string in to get the action/intonation fixed about 9 months ago and it worked great, I've gone through 2 sets of strings since then and now it buzzes like crazy on the A and B strings when played open, if you fret a note it's fine.

Any suggestions on how to fix this myself? Or am I looking at just getting the nut replaced?

Thanks!