That could be why changing to a different race worked. 
 
What I did when trying to make an Iksar monk was first unassign all of the points, pushed STR up as high as it would go, then put the rest into STA. I guess it's possible the STR value was considered too high for the race? I dunno. 
		
	
		
		
		
		
		
		
		
		
		
	
		
		
	
	
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