[GAMEPLAY] champion health bars not visible

Twice now, I have loaded into a game and been unable to see my own or any other champion's health bar above their model. My health and Mana bars in my HUD show accurate numbers (i.e. 356/700) but arent filled in with color; the whole bar is black. There is nothing aboce champion's models (no black, no glitches, just normal SR).

I sadly don't have reproducibility information. I thought this was my PC until a recent game had my soraka support complaining of the same thing. I recently updated windows 10 which may have an effect. Both games I experienced this I Alt-tabbed out of the loading screen (though I do this nearly every game with no detriment).

I have solved this issue by quitting the game/client and relogging.