Button navigation issues about survey-library HOT 2 OPEN

{
 "pages": [
  {
   "name": "page1",
   "elements": [
    {
     "type": "text",
     "name": "question1"
    }
   ],
   "title": "Page 1"
  },
  {
   "name": "page2",
   "elements": [
    {
     "type": "text",
     "name": "question2"
    }
   ]
  },
  {
   "name": "page3",
   "elements": [
    {
     "type": "text",
     "name": "question3"
    }
   ]
  }
 ],
 "showProgressBar": "belowheader",
 "progressBarInheritWidthFrom": "survey"
}

{
 "title": "Customer Satisfaction Survey",
 "pages": [
  {
   "name": "page1",
   "elements": [
    {
     "type": "matrix",
     "name": "qualities",
     "title": "Please indicate if you agree or disagree with the following statements",
     "columns": [
      {
       "value": 5,
       "text": "Strongly agree"
      },
      {
       "value": 4,
       "text": "Agree"
      },
      {
       "value": 3,
       "text": "Neutral"
      },
      {
       "value": 2,
       "text": "Disagree"
      },
      {
       "value": 1,
       "text": "Strongly disagree"
      }
     ],
     "rows": [
      {
       "value": "affordable",
       "text": "Product is affordable"
      },
      {
       "value": "does-what-it-claims",
       "text": "Product does what it claims"
      },
      {
       "value": "better-than-others",
       "text": "Product is better than other products on the market"
      },
      {
       "value": "easy-to-use",
       "text": "Product is easy to use"
      }
     ]
    },
    {
     "type": "rating",
     "name": "satisfaction-score",
     "title": "How satisfied are you with our product?",
     "minRateDescription": "Not satisfied",
     "maxRateDescription": "Completely satisfied"
    },
    {
     "type": "rating",
     "name": "recommend",
     "visibleIf": "{satisfaction-score} > 3",
     "title": "How likely are you to recommend our product to a friend or co-worker?",
     "minRateDescription": "Will not recommend",
     "maxRateDescription": "I will recommend"
    },
    {
     "type": "comment",
     "name": "suggestions",
     "title": "What would make you more satisfied with our product?"
    }
   ],
   "navigationTitle": "Overall satisfaction"
  },
  {
   "name": "page2",
   "elements": [
    {
     "type": "radiogroup",
     "name": "price-comparison",
     "title": "Compared to our competitors, do you feel our product is:",
     "choices": [
      "Less expensive",
      "Priced about the same",
      "More expensive",
      "Not sure"
     ]
    },
    {
     "type": "radiogroup",
     "name": "current-price",
     "title": "Do you feel our current price is merited by our product?",
     "choices": [
      {
       "value": "correct",
       "text": "Yes, the price is about right"
      },
      {
       "value": "low",
       "text": "No, the price is too low for your product"
      },
      {
       "value": "high",
       "text": "No, the price is too high for your product"
      }
     ]
    },
    {
     "type": "multipletext",
     "name": "price-limits",
     "title": "What is the highest and lowest price you would pay for a product like ours?",
     "items": [
      {
       "name": "highest",
       "title": "Highest"
      },
      {
       "name": "lowest",
       "title": "Lowest"
      }
     ]
    }
   ],
   "navigationTitle": "Pricing"
  },
  {
   "name": "page3",
   "elements": [
    {
     "type": "text",
     "name": "email",
     "title": "Please leave your email address if you would like us to contact you."
    }
   ],
   "navigationTitle": "Contacts"
  }
 ],
 "showQuestionNumbers": "off",
 "showProgressBar": "auto",
 "progressBarShowPageTitles": true,
 "progressBarShowPageNumbers": true,
 "progressBarInheritWidthFrom": "survey",
 "widthMode": "static",
 "width": "1000"
}