Arthas' miniature is not displayed correctly on the selection panel

When I change Arthas’ skin to human or any other, the mini on the selection panel still looks like the Lich King. Initially, everything worked fine, but as I received rewards, now it is broken. I checked on Android and PC - the problem remains.

QUICK UPDATE! The bug appears only if you chose a talent for Arthas. If you don’t use any ability, the mini on the panel shows correctly.

There are screenshots with a problem. All what you need - to select a talent.
i.postimg.cc/FzqN5NNJ/Arthas-mini-bug.png
i.postimg.cc/BZwq1cHQ/Arthas-mini-bug-2.png
i.postimg.cc/J4DR3D53/Arthas-mini-bug-3.png