titleLocation="hidden" in paneldynamic hides all template questions title

Hello,
Inner question titles are also hidden because the templateTitleLocation is set to inherit by default. Therefore, it also gets the hidden value.
To hide the Dynamic Panel's title and preserve titles of inner elements, set the templateTitleLocation to a required value. For instance, set it to "top".

The updated survey JSON is shown below.

JSON
{
 "pages": [
  {
   "name": "page1",
   "elements": [
    {
     "type": "paneldynamic",
     "name": "vacation-info",
     "title": "Enter information about your vacations",
     "titleLocation": "hidden",
     "templateElements": [
      {
       "type": "dropdown",
       "name": "country",
       "title": "Select a country",
       "choicesByUrl": {
        "url": "https://surveyjs.io/api/CountriesExample",
        "valueName": "name"
       }
      },
      {
       "type": "text",
       "name": "start-date",
       "visibleIf": "{panel.country} notempty",
       "title": "Select a vacation start date",
       "defaultValueExpression": "today()",
       "inputType": "date"
      },
      {
       "type": "text",
       "name": "end-date",
       "visibleIf": "{panel.country} notempty",
       "startWithNewLine": false,
       "title": "Select a vacation end date",
       "defaultValueExpression": "today(10)",
       "validators": [
        {
         "type": "expression",
         "text": "End date should be greater than start date",
         "expression": "{panel.start-date} < {panel.end-date}"
        }
       ],
       "inputType": "date"
      },
      {
       "type": "html",
       "name": "days-spent",
       "visibleIf": "{panel.country} notempty and {panel.start-date} notempty and {panel.end-date} notempty and {panel.start-date} < {panel.end-date}",
       "titleLocation": "left",
       "readOnly": true,
       "html": "<b>Days spent in {panel.country}</b>: {panel.diffdays}"
      },
      {
       "type": "expression",
       "name": "diffdays",
       "visible": false,
       "expression": "iif({panel.start-date} < {panel.end-date}, diffDays({panel.start-date}, {panel.end-date}), 0)"
      }
     ],
     "panelCount": 1,
     "maxPanelCount": 10,
     "confirmDelete": true,
     "templateTitleLocation": "top"
    }
   ]
  }
 ],
 "showQuestionNumbers": "off"
}

Let me know if you have further questions.