Yeah, I had some other ppl report that issue in similar devices as yours.
I don't really know what causes it because it runs just fine in most of them (and I can't replicate the issue in my test devices).
It definetely seems more of a client-side issue, but I might be wrong with it.
If I ever find out what causes it, I'll fix it for sure.
The launcher icon is the same as the play store's icon, if you're seeing just a green one is due to an error.
Thanks for the feedback and I hope you enjoyed the experience!