Player ELO


I recently bought a player and it's ELO doesn't seem to match his quality and performance in ranked games. I've waited 2 days to make this post since I wanted to see if the ELO would improve during the server updates. I would like to know if it's a problem on my end or if it's a bug.
I'll leave some screenshots for you guys to see.

Without any further questions,
Player's elo is base on is soloq games result, if he win he gets positive elo, if he lose he lost elo.
Well, I know that. But as you can see on the screenshots I sent, he's winning games left and right on SoloQueue by enormous scores I might say, but his ELO is hardstuck in 1100.
We've had another issue before where players would win in soloqueue and gain elo while they'd continue to compete with the same low level players. This seems like some variant of that bug.

I wouldn't sweat it too much though, player elo means little more than bragging rights at this point.