Interesting. Have you tried updating your graphics card driver?
Viewing post in Honkai: Star Rail Otome Fangame comments
This can probably explain a graphics card better than I can:
I'm honestly not all that tech savvy, I just know whenever I have an issue with graphics, the first thing to check is if the graphics card driver needs an update. Regardless I'm pretty sure it's a compatibility issue with your computer as opposed to a bug or something I can fix on my end. I've tested it both on my computer and my fiance's and they both display the sprites just fine. Sorry I can't be of more help ^_^;