Hey Barno
That axe is looking very cool, nice work!
That 12th fret looks like it has become "unstuck" so I think it will probably keep moving about over time through playing and environmental changes etc. (in my limited amateur opinion). I'd say it probably needs to come out and be replaced or reset. If it has been filed to level it before and then is reset, it will probably then be sitting too low compared to its neighbors.
If it were my guitar, I'd take it to Rob Matthews guitar repair in Wellington. He's a great luthier and a top bloke, I highly recommend him. I believe he is operating out of the CBD. You should be able to find him on Facebook to make contact.
I hope that helps!
