[CRASH] Entire team bugsplatted in ARAM at same time

Just played an ARAM, and a couple minutes into the game, at the first teamfight, everyone on our team crashed at once. I was able to reconnect as was the rest of the team, but it happened exactly at the same time apparently, everyone getting specifically a bugsplat error. The enemy team did not crash at all, however. I'm unsure whether this was a bug, or some kind of hack. I didn't send the log initially as I just assumed it was a normal bugsplat caused by the system or something, which I usually dismiss.

Obviously this has only happened once, and I can attach my logs if need be, and I can also get another log from a player I was with in that game, who I play with a lot.

Quick edit, I've got a video showing the disconnect (And that the team reconnects too, in case that's necessary) I can't add a link back on to the post, though so I'll put it here. https://youtu.be/W3x3QXnWsIE