Invisible players

When logging in to a ranked game with Veigar Final Boss Skin, all 10 champs splash art and summoner spells appeared(Kogmaws name was his file location). When we were dropped into game all 5 of my players were on the team but when looking at the list of players the only people that showed on my game were Orianna and Draven.

1.)Team composition:

Ours(purple side): Final Boss Veigar Dragon Slayer Pantheon Deep Sea Kogmaw Udyr Nami( I think)

Theirs(Blue side): Orianna Draven( may have had a skin) Morgana Vi I do not remember the fifth champion

2.) Vi and Morgana may have had skins, I wasn't able to see them and do not remember them from the loading screen 3.) I was able to see chat from the other team but their names were blacked out instead of red 4.) When another of my team killed an enemy that was invisible to me a blue "unknown player" came up instead of their champion 5.) When Draven and Orianna were both killed the "aced" announcement was said, even though my team was clearly fighting the other team. 6.) I could still see character made animations such as Morgana's stun and puddle effect as well as Vi's armor break. 7.) From what I saw in chat everyone else could see the other players perfectly fine.