Dear dev dota2

I am using radeon rx480 with hdmi2.0 cable and 4k tv.. and i got icon bug. Graphical bug. Artifact on screen.. idk if its the problem with the radeon or the last 2 driver. My temps were good. No overclock.. the bug only happens with dota 2, the other games work just fine. Please fix it.
I am on win10 64 bit.