fix a bug - only happend when we use more than the default number of bmps
fix a bug - only happend when we use more than the default number of bmps

pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable,pscedu/slash2-stable