Running a retrofit hydraulic roller cam

I’m pretty sure the video goes with these threads:

No oil to rockers but have oil to lifters what rmp to flow shafts with all new stuff

HELP!!! Hughes Retro Fit Roller Lifters Problems

Like I said, my main takeaway from this is....... this type of **** can happen.

I think there was recently(this year?) another thread about someone having one lifter that just wouldn’t pump up.
They finally got curious enough to pull the offending lifter apart, only to find the feed hole coming through the body wasn’t drilled all the way through.
No oil getting into the lifter.

I wouldn’t be surprised if it was something similar affecting all 16 lifters in that video.
That’s what it sounds like to me....... 16 empty hyd lifters.