Bugged Tower Health?

I just went into a custom game to test Volibear's new clear speed with the recent Jungle Creep nerfs and Buff to his W, and I noticed that all outer towers on Blue side had 1000 health, all inner and inhib plus nexus ones had 1300

Meanwhile red side had 1200 on their outer turrets. I don't know if this is a custom game bug or if it's hit PVP, but it seems really wrong