Slim-armed skins have their arms slightly lower than their torsos

As of 2/ 29/ 2020, I came across the bug in the "profile" menu where slim-armed MC skins have their arms incorrectly alligned to their torsos. Nevertheless, these skins look normal when I view them through apps such as PMC skin creator and Skindex. The files attatched to this report can help you visually understand this bug and know that this issue is real.

 

P.S. This issue isn't happening to classic/ thick-armed skins [see "Classic skin (reference)" picture].

P.P.S. This problem occurs with and without resource packs.

 

Skin used in images courtesy of ElvenJedi