The skins won’t work, the two empty slots are invisible and each time I put on a skin it still is invisible so when I try and join a server it says it’s corrupt please help

Thank you for your report!
However, this issue has been closed as Cannot Reproduce.

We were unable to reproduce the problem you are describing in the latest version. It is likely that you are using a non valid png skin file.

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I’m having the same problem. Minecraft says that it must be that our skins must not be a valid skin, but I’ve been using the skin my whole life, and now for some reason it doesn’t work.