Hovering with the mouse over an enchanted item causes a crash if the id contains capital letters
/give @p minecraft:diamond_sword{Enchantments:[{id:"Cookie",lvl:1}]}
Description: Rendering screen
i: Non [a-z0-9/._-] character in path of location: minecraft:Cookie
at ok.<init>(SourceFile:36)
at ok.<init>(SourceFile:41)
at awn.a(SourceFile:582)
at cmd.a(SourceFile:99)
at cmd.a(SourceFile:95)
at cnh.a(SourceFile:674)
at cmy.b(SourceFile:177)
at cnh.a(SourceFile:631)
at cvw.a(SourceFile:821)
at cim.c(SourceFile:820)
at cim.a(SourceFile:381)
at net.minecraft.client.main.Main.main(SourceFile:144)
Maybe related to MC-124123