fret buzz

[FrankenWashie]

You might need to check the saddle heights on the bridge, potentially the saddles are in a flat line, you may need to raise the 2nd and 3rd string saddles to account for the board radius.

If not, check your nut and the flatness of the board to see if the issue is caused by faulty nut or by hacking back bow on the neck.

Have you done a fret level check?

Edit: beat me to it Sonic!