Lifter stuck?

Got it all apart. Stripped the block down to bare. Pulled all the oil journal plugs and cleaned everything I could get to with engine brushes, brake clean and compressed air. I checked everything, all the bearings look good. I tried several different lifters in the bore to see if it would stick, moves up and down and turns with no issues. Idk what happened. I used lunati cam paste on the bases of the lifters and the cam lobes and oil on the sides of the lifters and the bores previously. So I cleaned all the pistons, pulled all the valves and cleaned them and the guides, got a new cam kit, got a new oil pump and pick up and a new gasket set and put it back together. Still trying to get it buttoned up to try and break it in again. We’ll see.