Drag to invite feature bugged [CLIENT]

I simply clicked play again after a ranked solo queue game and this appeared on the lobby. i cant choose roles, i can quit but restarting the lobby has the same problem. Restarting the client does fix it, but that's all i know about it. I didnt try to drag anyone in, or click at all on anyone in the friends list, the bug was just immediately there as i got into lobby after pressing play again. Just thought i should let you lads know.