I found another bug when I making a map for my server, but I keep on playing singleplayer from the beginning to the end. That means the bug might be only on the client, not on the server.

I blocked two command blocks. Then I input 【/summon cow "§d§lLook at me"】 for the right one and 【/summon npc "§d§lLook at me"】 for the other one. And I activate these two command blocks. The result is: (Please look at the photos under the pessage)

As you see, the NPC doesn't has the custom name, but the cow does. Why? However, this bug didn't appear in the versions ago such as 1.19.10. I didn't know when the bug appeared, but I guess it may be first appeared in 1.19.40. (I first found this bug in 1.19.41)

Maybe you ask me the use of it. If I use the editior interface of the NPC, I can only write a line of text in it, but I want more to explain the features of this NPC. Name tag couldn't play a role in naming the NPC, but it truly can name most mobs. Another way is to use NBT editior. But when I use it, the game will crash. So that's useless.

Please fix it as soon as possible though it isn't very important! Thanks