Bug in shield or crossbow display on screen in custom skins with capes and more

I went to put on a cape that I got to celebrate 15 years of Minecraft, when I put it on items like crossbows or shields were crooked or too low without appearing on the screen. The shield was very low with no view of it. When I remove the cape it goes back to normal.
Taking advantage of this article, I wanted to say that constant crashes still occur during gameplay even after updates, each mob that appears causes a lag of 2 to 5 seconds and I think this may be associated with the Snapdragons adreno processors. On other Exynos-type processors this does not happen. The paper doll (character that appears in the corner of the screen) does not appear even with the "hide paper doll" option deactivated.