Elder Guardian Spawn Egg Texture not shown

Hello,

While recently playing Minecraft: Java Edition on my own server, I wanted to spawn some animals with spawn eggs (please look at the attached image), so I opened the spawn egg menu. Unfortunately, there's a purple-black texture at the elder guardian spawn egg, but not a normal texture. Can this bug be fixed? The Bedrock Edition currently hasn't this bug, there's a normal texture. I'm using Vanilla Minecraft with no mods.

Greetings,

Atten