I reinstalled Minecraft to get rid of some things like forge and optifine which weren't working. When I reinstalled it, and went on a server, I noticed no skins were showing for anyone, including myself. thses are my friends I had played with recently, so I know they had skins, not to mention I asked and confirmed they had skins. The same problem happened in singleplayer.
Thank you for your report!
We're actually already tracking this issue in MC-101579, so I resolved and linked this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.
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