TF2 Bot Class Problem, They like being engineers Options

[Spacetech]

I have an exec file with

CODE

sv_cheats 1
rcbotd addbot 1 2 Scout
rcbotd addbot 2 2 Sniper
rcbotd addbot 3 2 Soldier
rcbotd addbot 4 2 Demoman
rcbotd addbot 6 2 Heavy
rcbotd addbot 8 2 Spy
rcbotd addbot 9 2 Engineer
sv_cheats 0

Everytime I run it all the bots spawn as the correct class, but then not even a second later they all change to engineer.
Heres a log of it

L 10/19/2009 - 20:04:46: "Scout<16><BOT><Unassigned>" joined team "Spectator"
L 10/19/2009 - 20:04:46: "Scout<16><BOT><Spectator>" joined team "Red"
L 10/19/2009 - 20:04:46: "Scout<16><BOT><Red>" changed role to "soldier"
L 10/19/2009 - 20:04:46: "Scout<16><BOT><Red>" changed role to "engineer"

Any reason why it would be doing this?
I'm running the latest RCBot 0.52 beta.