Lifter stuck?

Thanks for the replies and advice. I do agree it’s nearly impossible to diagnose something by a description of what’s going on without actually being there and having hands on. Just thought I’d reach out and see if anyone had seen this before. And if so what they had found was the cause. Obviously I will be much more careful about checking everything as I put it back together. Would you guys suggest complete disassembly and having this thing hot tanked to clear any metal from the oil passages etc? Thanks