It is, because its setting at the very back of the recess, which is also why the hand function is sporadic at the same time.
The transfer bar, as you know, is a block for the arm on an uncocked gun. With the hammer nose left long, it also acts the same way because the hammer strike isnt allowed to force it out of the way, downward, the way it's designed to.
I'm betting a pin protrusion check will illustrate the culprit.
It doesn't seem to make sense, until you check the protrusion AND the contact of the transfer bar. As the hammer face is cleaned up, the travel of the bar drops.
Like I said, I had an Anaconda that did the same thing; the hammer nose was unfinished with the casting seam untouched.
An idea they obviously stole from Ruger LOL. I've seen more than a few GP100 and RedHawks that had firing pin protrusion as low as 0.030", before being sorted out.
