Is there any RP bugs

i just had 5 matches 5 different with my f5c and any time im getting same rp even that i have 50% rp booster i got a game with 4 real players kill and victory and 50% booster and i got 15k rp ,another game i got 3 real player kills with the 50% rp booster and a victory i got again 15k rp ,another game i got 1 real player kill and 20% rp booster and a victory and got 15k rp how is that even a thing the more kills you get the rp is the same and i even tried it with a10 premium i got 4 real player kills and 5 ground unit with 50% rp boost and a victory and i got 15k rp all this in air realistic battles