[Gameplay] Missing HUD in ARAM

So like the title says, in my last ARAM as Akali I couldn't see my HUD. I print screened but the screenshot came out black, so I'll try to explain as best as i can. I couldn't see the blue bar, my items, skills, summoners, buffs, and score. No champion portrait or stats either. When i used an ability/item/summoner I could still see the cooldown ticking but the icons were still invisible. Everything was clickable, just invisible. I could see my gold and my ult charges showed up where my r icon was supposed to be, though. Minimap was there too. Yay! Everything else was normal as far as i know.

Didn't really ruin my game, but I did forget to use my summoners and items a few times just because i didn't see them :P This was my first game where this happened, I'll update the post if it happens again but unfortunately I don't know how to reproduce the bug:(