When playing multiplayer, other people's skins became Steve and Alex, and the following error message was output.
The same error occurs in 1.16.1, 1.16.5, and 1.17.

[15:54:17] [Render thread/WARN]: Error while loading the skin texture
java.io.IOException: Could not load image: Image not of any known type, or corrupt
at det.a(SourceFile:125) ~[1.16.5.jar:?]
at det.a(SourceFile:99) ~[1.16.5.jar:?]
at det.a(SourceFile:90) ~[1.16.5.jar:?]
at ejt.a(SourceFile:141) [1.16.5.jar:?]
at ejt.a(SourceFile:91) [1.16.5.jar:?]
at ekd.c(SourceFile:96) [1.16.5.jar:?]
at ekd.a(SourceFile:68) [1.16.5.jar:?]
at eks.a(SourceFile:80) [1.16.5.jar:?]
at eks.a(SourceFile:112) [1.16.5.jar:?]
at eks$$Lambda$3733/161339369.accept(Unknown Source) [1.16.5.jar:?]
at com.google.common.collect.ImmutableList.forEach(ImmutableList.java:408) [guava-21.0.jar:?]
at eks.b(SourceFile:110) [1.16.5.jar:?]
at eks$$Lambda$3700/1714317466.execute(Unknown Source) [1.16.5.jar:?]
at com.mojang.blaze3d.systems.RenderSystem.replayQueue(SourceFile:116) [1.16.5.jar:?]
at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:103) [1.16.5.jar:?]
at dez.e(SourceFile:308) [1.16.5.jar:?]
at djz.e(SourceFile:1068) [1.16.5.jar:?]
at djz.e(SourceFile:681) [1.16.5.jar:?]
at net.minecraft.client.main.Main.main(SourceFile:215) [1.16.5.jar:?]