1. Create a character
2. Select one of the first three races (Squirrel, Rabbit, Raccoon)
3. Click again near the top of these sprites
4. Crash

Happens very consistently, with this error:

ERROR in
action number 1
of Mouse Event for Glob Left Released
for object RaceSelector:

Push :: Execution Error - Variable Index [-1] out of range [12] - -1.races(100143,-1)
at gml_Object_RaceSelector_Mouse_56
############################################################################################
gml_Object_RaceSelector_Mouse_56 (line -1)