[CLIENT] When I finish a game as Twisted Fate, there seems to be no IP gain

I have just recently played two games as Twisted Fate, one a normal game, the other an ARAM. I won both of them, each of them being much more than 7 minutes (If i remember right that is the time you need to pass in a game for you to start gaining IP), and passing the other requirements to receive IP. But when I exit the results screen I seem to gain no IP. The amount of IP I have does not increase or decrease, and in the match history, no IP gain is shown. The link is of a screenshot I took of one of the games I played in my match history in the client. I have not lost a game as Twisted Fate in this current patch (6.16) so I don't know if it's only when you win a game as TF that this happens. The items, kda ratio, or time don't seem to affect this in any way. I have tried other champions and they all give me IP when i finish a game.

If you want to try this out for yourself, well I mean there's not really much you need to do. Just pick TF in some gamemode and see whether or not you get IP from the game.

I would really appreciate it if someone else tried Twisted Fate in some type of game mode and see if this happens to them too, since I haven't played enough games as TF in this patch to really know what is happening.