[CLIENT] Client goes black when enlarging it while in the lobby to queue up for ranked

While I was in the lobby of a ranked game, I decided to resize the client by clicking on the lower-right hand corner. My entire client immediately turned black, however, every button, except the "x" button to close out of the client, still worked.

How To Reproduce:

1. Go into the lobby for a ranked queue without selecting roles or queueing up
2. Click the lower-right hand corner to resize the client
3. The client may immediately turn black

I haven't tried to get it to happen again, and I resize my client frequently, yet this hasn't happened before or on any other screen. It's possible that it's just a one-time thing on my client or a rare thing that happens every now and then, or maybe it just happens while you're in the process of joining the ranked queue because I rarely do resizing at that point. I also don't have a screenshot or video.