I've tested this in Safari and Chrome on OS X, and in Chrome on Windows 7
It's a single repeats section, see attachments
I can see the following requests (I removed the token part to keep it readable) being fired off, retrieving the photos from the attachments table and the features from layer 0 (this one is executed twice). These seem to execute OK, but then everything goes silent.
https://utility.arcgisonline.com/arcgis/rest/services/Utilities/PrintingTools/GPServer/Export Web Map Task/execute?f=json&Web_Map_as_JSON={"mapOptions":{"showAttribution":true,"extent":{"xmin":1073228.0729566894,"ymin":4257022.937526825,"xmax":3421373.5818766793,"ymax":5626774.48439682,"spatialReference":{"wkid":102100,"latestWkid":3857}},"spatialReference":{"wkid":102100,"latestWkid":3857},"scale":18489297.737236},"operationalLayers":[{"id":"layer2","title":"layer2","opacity":1,"minScale":591657527.591555,"maxScale":70.5310735,"url":"https://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"},{"id":"map796615_graphics","opacity":1,"minScale":0,"maxScale":0,"featureCollection":{"layers":[{"layerDefinition":{"name":"pointLayer","geometryType":"esriGeometryPoint"},"featureSet":{"geometryType":"esriGeometryPoint","features":[{"geometry":{"x":20.187846812828894,"y":40.520691087175045,"spatialReference":{"wkid":4326,"latestWkid":4326}},"symbol":{"angle":0,"xoffset":0,"yoffset":0,"type":"esriPMS","url":"https://survey123.arcgis.com/assets/img/survey-data/Location.png","width":18.75,"height":36.75}}]}}]}}],"exportOptions":{"outputSize":[460,280],"dpi":96}}&Format=JPG&Layout_Template=MAP_ONLY
https://services2.arcgis.com/D5Q9p2c0OJOw3foO/arcgis/rest/services/service_ec9e8fb00dc94f58ad0b34caf...
https://services2.arcgis.com/D5Q9p2c0OJOw3foO/arcgis/rest/services/service_ec9e8fb00dc94f58ad0b34caf...
https://services2.arcgis.com/D5Q9p2c0OJOw3foO/arcgis/rest/services/service_ec9e8fb00dc94f58ad0b34caf...
https://services2.arcgis.com/D5Q9p2c0OJOw3foO/arcgis/rest/services/service_ec9e8fb00dc94f58ad0b34caf...
https://services2.arcgis.com/D5Q9p2c0OJOw3foO/arcgis/rest/services/service_ec9e8fb00dc94f58ad0b34caf...{"xmin":2245414.1434902363,"ymin":4940889.5079574175,"xmax":2247860.1283954233,"ymax":4943335.492862606,"spatialReference":{"wkid":102100,"latestWkid":3857}}&geometryType=esriGeometryEnvelope&inSR=102100&outFields=*&outSR=102100&resultType=tile&token=
https://services2.arcgis.com/D5Q9p2c0OJOw3foO/arcgis/rest/services/service_ec9e8fb00dc94f58ad0b34caf...{"xmin":2245414.143499423,"ymin":4940889.507951193,"xmax":2247860.1284046136,"ymax":4943335.492856383,"spatialReference":{"wkid":102100,"latestWkid":3857}}&geometryType=esriGeometryEnvelope&inSR=102100&outFields=*&outSR=102100&resultType=tile&token=