[Bug] Skin conversion has been incorrect

[daberpsha]

like the two pictures, when you using a skin with slim model (include default height and importing skin), it will been displacement even show incorrect skin.
just an issue i found

first picture. expected show second picture. conversion by floodgate

[Teepy9]

I can confirm the slim skin is broken in floodgate. this can be checked frrom mcprofile.io which pulls the skin directly from floodgate

[qwertyquarty]

can confirm as well, first is the bedrock account and second is java, the skin png from textures.minecraft.net changes as well