I believe I am having a similar problem. The front of my right pant leg copies the same as my left on the under layer. The outer layer stays the same and it seems to only effect the front face of the leg. Very confusing in words.
Hello Arus,
The issues such as wearing "someone else's skin entirely" and "weird crouching" seem to be a problem that I run into when playing on The Hive server. According to The Hive's Twitter and Discord, they are working to resolve an issue with the server not being compatible with the new skin update. Players are required to wear a skin pack made by the server (the halloween skin pack or a Hive Costume) until they are able to fix this issue. The weird crouching* that I have seen only happens when players are wearing a Hive costume (*bending forward with feet up instead of bent over). Other than these two things, I also have the same issues and I hope everyone can work to get them fixed. It's very frustrating.
I've noticed that some of the reporting being done is actually at the fault of the listed multiplayer servers. Servers like The Hive, CubeCraft, etc. were not necessarily prepared for this enormous update. Because of this, the server creators are having to work to patch issues where skins are not working, there is weird crouching, etc. Even now, The Hive (on their Twitter and Discord) have stated that they are aware the server isn't supporting the new skins and are instead having users wear skins from their own packs available on the store. This issue seems to be a multiplayer server issue and may not be fixable on Mojang's end. However, I will say that I'm not knowledgable of the way Mojang works with these servers.
I'm really frustrated because I just updated my Minecraft IOS app to this new nether update. They've got emotes and all this fun stuff, but they haven't even fixed this easy little thing that apparently just has to do with the code being set to "true" instead of false. And it seems like it's gotten worse. Now, instead of mirroring the other side, it literally just copies it. So the inside of the left leg is the outside of the right. It looks even more stupid. They just finished a major update. We've been complaining about this since Fall of last year. The fact that they haven't fixed this, but the Steve characters and male figures look fine is a little questionable. There are plenty of slim armed characters playing on servers, so you'd think someone would look around at how stupid they all look and say, "hey, maybe we should fix this." I added my own reference pictures for the new update (don't judge my character lol. It's a cosplay look).
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