There is just not enough info for anyone to provide help on this. All the errors I see in the console are from the API and not the actual Query Widget. What does your config json for the query widget look like for that layer?
I am choosing a map service, I am getting a result in a popup window, the query layer is added to the map it just does not display. The config.json is not changing?
Are you grabbing the right json file then? When you make configuration setting changes the json will be saved in the apps configs folder and then the widget name i.e.
configs\Query\config_Query.json (after you save).