It can also be reproduced in 18w08a and 18w08b. log:
[12:27:28] [Client thread/WARN]: Couldn't save auto screenshot java.io.IOException: Could not write image to the PNG file "D:\1.13 snapshot\.minecraft\saves\ζ°ηδΈη\icon.png": Corrupt JPEG at cuh.a(SourceFile:306) ~[18w08b.jar:?] at cle.n(SourceFile:1049) [18w08b.jar:?] at cle.a(SourceFile:962) [18w08b.jar:?] at bya.b(SourceFile:820) [18w08b.jar:?] at bya.a(SourceFile:381) [18w08b.jar:?] at net.minecraft.client.main.Main.main(SourceFile:141)
It can also be reproduced in 18w08a and 18w08b.
log:
[12:27:28] [Client thread/WARN]: Couldn't save auto screenshot
java.io.IOException: Could not write image to the PNG file "D:\1.13 snapshot\.minecraft\saves\ζ°ηδΈη\icon.png": Corrupt JPEG
at cuh.a(SourceFile:306) ~[18w08b.jar:?]
at cle.n(SourceFile:1049) [18w08b.jar:?]
at cle.a(SourceFile:962) [18w08b.jar:?]
at bya.b(SourceFile:820) [18w08b.jar:?]
at bya.a(SourceFile:381) [18w08b.jar:?]
at net.minecraft.client.main.Main.main(SourceFile:141)