Hey! thanks for stopping by. I assume you're talking about sprite piviot? It's been a while but I think i just center it in asprite then using flip h should work.
I think issue with mine is that the asprite comes out in different frame sizes and pivots so when I center it the animations become shaky it really is a annoying 😂I was able to try slice it myself but even then struggling to get it to work since when the boss flips it does it at the pivot so it jumps a few blocks