Ignition cylinder won't turn left to lock

Good morning all, I've been fighting with this replacement lockset for a few days now. My original lock someone tried to break it or something so I replaced it with a cheap one. 

Recently I've been trying to go over everything and get it all cleaned up and 'nice' for lack of a better term. Bought a replacement OEM (used) lockset and everything works fine except the key won't engage the lock pin.

I've pulled it all apart and I'm not seeing anything binding it, I've Frankensteined it with 2 other lowers to test if that was it, I've swapped the pin and the plastic holder thing that attaches to the pin and moves when you turn the key (the one from my original ignition was less worn out than the replacement one) I've used a graphite lube thinking that maybe it was just a stuck tumbler or something.

I'm baffled, by all means everything I saw during my surgery of this thing is that there shouldn't be anything binding it up but it still won't turn to lock. Normal operation works totally fine. Off/on/flashers no problem at all.

Anyone have any idea? 

I had a similar issue, but on the other side of the turn: all of a sudden, in the middle of a clubride after a coffeebreak I couldn’t turn it far enough to the right so couldn’t start anymore. That was the only time she left me stranded. Long story short: took the thing apart and there was one lockpin that wouldn’t move enough due to grease/dirt blocking it. So took out all the lockingpins and cleaned everything thoroughly, lubed it with graphite and problem was solved.

But since you’ve tried this also that’s not the issue. Could it be there’s some kind of aligning-issue/misfit of the barrel causing it? 
Goodluck figuring this out and let us know!