Hextech Janna invisibility bug! [GAMEPLAY]

I wasn't able to get a screenshot and I don't completely know what caused it. I was in a team fight and I suddenly stopped moving I was freaking out asking my friend if I d/ced and I was lagging or something but my team could see I was invisible with pieces of Hextech Janna's outfit sticking out as well as her little Zephyr bird. This is the first time it's ever happened. I would right click on the ground somewhere and it would delay for about 3 seconds before I would move. I auto attacked a minion and it fixed itself, as I assume any other action would fix it. I'll list all the champions and skins involved if it helps any:

1. Classic Viktor
2. Galactic Azir
3. Urfrider Corki
4. Classic Ahri
5. Professor Ryze
6. Classic Vi
7. Hired Gun Lucian
8. Championship Thresh
9. Classic Elise

EDIT: It just happened again to Syndra when I tired to use abilities on her as Lux she was fighting the Dragon with her team. Its not even skins Im wrong.