Compat issue with ULTRACRAFT sliding

(please note that this is a semi-copy-paste from the git from the ultracraft one for issue ultracraft#181 and that i was using Sinytra Connector )

How did i find this bug?

so i was playing around with the ULTRACRAFT mod this mod when i discovered that (with ANY latex tf, yes even the human latex) if you are one of the latexes w/ consciousness, for some reason, the slide will NOT change your height to 1 block.

Also note that the feet paws and some limbs will still do the basic ground movement animation

sliding while tf'd vid: https://drive.google.com/file/d/1DqTbb9lpAuoAECwNfA1chSJpRW76f9hB/view?usp=sharing

sliding while not tf'd: https://drive.google.com/file/d/1zCa7cSnUDemRuE8XhglPVT14AoRYCOp8/view?usp=sharing

Again, i will say, if you can give me some tips for debugging this slide height change thing and the animations for it, its appreciated.

(also forgot to put this here, when u get tf'd also doesnt matter if its human latex, the player will not hold the guns with the arm outstreched.
also the nailgun is weirdly posisitoned when holding it. vid here: https://drive.google.com/file/d/1DBdP9PDaBivg2j4LqDRB-JaK6om47CEO/view?usp=sharing )

まず、Sinytra Connector を使って ULTRACRAFT の変身とスライドの挙動を再現し、変身中と非変身時の移動をリンクされた動画と比較します。変身したプレイヤーが 1 ブロック分のスライド高度に到達できない理由と、腕のポーズおよび Nailgun の位置が異なる理由を調査します。変身中のスライド高度、移動アニメーション、銃を持つ腕のポーズ、Nailgun の位置が正しくなれば完了です。