There's something wrong with tag {SkullOwner}

What does the title mean?

I used /give @a minecraft:player_head{SkullOwner:"xxx"} to get three players' head. But after that I found sth isn't right ...

How to produce?

1. Use the cmd above. Just change "xxx" to "yezi_mua", "TangyuanMM" and "Anran_0v0_".
2. Then you can see there goes wrong.

Details

• I uploaded some information from namemc.com in order to get the information among those players conveniently.

• • I got TangyuanMM's head first by custom trading villagers. It showed Alex's head. I realized it went wrong. Then I got Anran_0v0_'s. Correct. At last I got yezi_mua's. The texture is Anran_0v0_'s but not her own.

• • • As you can see in those screenshots, TangyuanMM used yezi_mua's skin for a time.

• • • • To help you get accurate information, I held F3 + C for 10 secs and produced a crash-report.

 

At last I wish you all Happy New Year! That was really a "rich"(substantial) 2019.