Mina's Ult Does Not Hit Properly In Bot Matches

[cooler]

Using Mina's Nox Nostra ability in a bot match will barely do any damage to an opponent regardless of how many stacks you have on it. The ability seems to work fine in all of the PvP matches I've played, but in the two bot matches I did at roughly 80 stacks the ability will hit maybe 5 bats total.