Example of bad display with Multiple Response Part which has Steps

gistfile1.txt

{
	notes: ""
	name: MAS3214 20122013 CBA2_5
	percentPass: 50
	shuffleQuestions: false
	extensions:[stats]
	rulesets:{
		std:[all,fractionNumbers, !collectNumbers,!noLeadingMinus]
	}
			
	navigation: {
		allowregen: true
		showfrontpage: false
		reverse: true
		browse: true
	}

	feedback: {
		showtotalmark: true
	}

	questions: [
		{
			name: MAS3214 20122013 CBA2_5

			variables: {
				p:"[2,3,5,7,11,13,17,19,23,29,31,37,41,43]"
				q:"p[0..8]"
				dp:"deal(14)"
				dq:"deal(8)"
				qd:"map(p[dq[x]],x,0..abs(dq)-1)"
				pd:"map(p[dp[x]],x,0..abs(dp)-1)"
				b:"pd[0]*pd[1]*pd[2]"
				t:"(pd[0]-1)*(pd[1]-1)*(pd[2]-1)"
				gc: "gcd(b,t)"
				bf:"max(pd[0],max(pd[1],pd[2]))"
				u:"switch(gc=pd[0],0, gc=pd[1],1,2)"
				chkm:"map(if(x=dp[0] or x=dp[1] or x=dp[2],1,0),x,0..abs(p)-1)"		
			}
			
						
			parts: [
				{
					type: gapfill

					prompt: """
					Find all natural numbers $n$ such that $\phi(n)=\simplify[std]{{t}/{b}}n$
					
					You are given that the general form of $n$ is \[n = p_1^{\alpha_1} p_2^{\alpha_2}\cdots p_s^{\alpha_s}\] 
					
					for a fixed set of primes $p_1,\;p_2,\ldots,p_s$ where $\alpha_j \ge 1\;\;j=1,\ldots,\;s$.
					
					
					Select the primes involved from these choices:
					
					[[0]]
					
					"""
					steps:[
					{type: information
					prompt:""" Factorize $\var{b/gc}$ into the product of one, two or three prime factors. You are given that $\var{bf}$ is a prime factor.
					"""
					}
					
					
					]
					gaps: [
					{type: m_n_2
					choices:["2","3","5","7","11","13","17","19","23","29","31","37","41","43"]
					matrix: ["chkm[0]","chkm[1]","chkm[2]","chkm[3]","chkm[4]","chkm[5]","chkm[6]","chkm[7]","chkm[8]","chkm[9]","chkm[10]","chkm[11]","chkm[12]","chkm[13]"]
					shufflechoices:false
					displaycolumns: 7
					}
					
					]
					
					}
			]
			advice: """ 
			
			"""
		}
	]
}