I resized them with the thingy you linked and made bf 50% smaller and I left the original xml and renamed the spritesheet to "BOYFRIEND.png" and now most of the times I just see his blue balls as his idle.
Viewing post in How do i add skins without the size being messed up
https://drive.google.com/file/d/1Prpb_rhaoYGq5BXfVoYMXR7B9K-m9kJD/view?usp=shari... here, idk if you can download em but these are the BOYFRIEND.png and BOYFRIEND.xml (also with christmas version and christmas GF because im also having issues with GF)
https://drive.google.com/file/d/1-2AP0fZ5L7Kr2jOWipRMuYfTA8MK-XVB/view?usp=drive... This version cant glitch like the other one and the best thing is that you dont have to resize it, btw this version is optimized by me.