I've encountered this error/bug many times over the last couple weeks where the amount of kills I get in-game during a ranked matched is not the same as the kills I'm credited for during the match summary. In turn my RP gained for each match is LESS than it is supposed to be. I'm a solo queue player so this is especially frustrating when I have to go against pre-made teams and I'm given much less skilled teammates. Every bit of rp gained helps but I fear I won't hit my goal of reaching Masters this season because of it.
I've included pictures for reference. Here you can see the discrepancy between kills gained during the match and kills that I was credited for and awarded RP. Feels like I've been cheated out of RP :(