[Fix for skins in Tekkit Classic]

I actually did find a fix! The issue is the new skin format. Instead of the new 64× skin texture with space for the arms/legs/jacket layer, you need the old 64×32 with the legs and arms sharing the same texture, as well as the hat layer, like the attached image. Upload a 64×32 version of your skin to use through, say, the official Minecraft launcher, and it should all be fine. The skin may not update immediately, just give it some time. Restarting the Technic Launcher may work as well.

[Fix for skins in Tekkit Classic]

Well, it worked... sort of. I have my skin, it's just not wrapped onto the model properly. I added both files as stated in the README, and I understand this is an old topic, but if I could get some help, I'd appreciate it. A screenshot showing the error is attached.