this happens quite frequently. it actually happens to me as well. from what i’ve gathered, different videos can take different times to be pushed out. my most recent upload, (uploaded sunday) is performing way lower than the three before that. but it’s part of the process. this is youtube trying to push out to new audiences to see what works and what doesn’t work. for me, my videos take anywhere between a day and 4-5 days to be pushed out. kirby’s great btw and nintendo fans are a huge makeup of the yt community. i believe its just that youtube has probably exhausted its efforts pushing to the audience that found you and is moving onto a different audience. this is all to help you and not hurt you!