Rocker Arm Stud Breakage again! Need some Advice!

Well got the valve covers off and to my surprise I was right on the money, This time however the lifter wasn't up in the valley. I did get a picture of what it looks like. This is almost exactly how the other two looked. I rechecked my geometry and like I stated above the roller rides the center of the valve tip the whole cycle, and it doesn't seem to have any sort of binding between the p-rod and adj. screw. Also the second time this happened I checked to see if I was getting propper lube through there there was hells of it. So this whole thing has me puzzled, I can't keep doing this or somethings badly gunna happen.