Minimap Champion Icon Glitches [CLIENT]

Enemy champions' icons are showing up as summoner spell icons. I've only seen it happen twice: the first time the enemy Viktor was showing up as the Smite icon, and a few games later the enemy Leona was being displayed as the Flash icon.

I don't know how to reproduce the bug, but both games took place on Summoner's Rift in Team Builder mode, and it seems to only happen to champions on the enemy team.

It's only happened in two games out of about eight I've played in the last two days. I'll get a screenshot of it if I come across it again.

Thanks for your time!