Invisible yasuo and varus OP

Ok, so i open up a ranked game of league, and on our team there is vayne,diana, xin, fiora, and tahm me being tahm). The enemy had a shen, udyr, yasuo, varus, and sona. So when i go into the game, i hit tab and note that i can only see the enemy team having 3 champs:shen udyr and sona. I ask my team if this was an issue for them and they said " nah bro its just you". I shrug it off and go to lane. first thing i notice is that theres no varus around, but there was a sona. Then i see a purple worm sprout on me. then another. then one more. so you could kinda imagine how confused i was at this time. I decided to reboot my game, and then the problem was fixed. However, because of my absence, we lost the 2 bot towers, and because udyr was free to farm with the lack of pressure from bot lane, he got fed, and we lost. I have no idea if this is linked to the sona bug right now, but it might. Riot can u look into this problem?