A visual bug in the client that hides some of ones allies

In champselect sometimes player under the person picking suddenly are hidden and then after the person picks, the others re-apear this happened twice during 7 games to both me and my friend on different instances, so they were not tied, (meaning it happened to him, and not to me and then vicec versa)

i think this is a duoque bug since all the times it happened i was qued with the guy picking while the bug appeared