Battle Power Bug

ileamdros

So I was around 199k BP. I managed to reach 200k BP and unlocked zanpakuto Kokujo Tenger Myo'o.
After activating that zanpakuto my BP dropped down to 193k. Not even materializing it.
Anyone knows this bug? My main's char physical ATK was around 22k and Speed was around 23k. They both dropped to 19k.

Anyone could lend me hand here? Did I do something wrong? My main's char BP was 55k and dropped down to 48k...