I created a simple application using the Basic configurable application. The web map has two feature services, one of which has the pop-up enabled. The web map is now accessed in the new map viewer. In I click on the "Show pop-up content panel instead of pop-up window," after saving the change, the pop-up opens and is empty. If I unclick, save, the floating pop-up opens and has the data. I am not sure what else I need to set/click on or off. I would really like to make use of the docked pop-up panel. Thanks.
I created a test app here and' can't reproduce the issue. Is your app public? If so can you share the link? Here's my test app: https://jsapi.maps.arcgis.com/apps/instant/basic/index.html?appid=0724e272354a4815b5b2f5a4af0a1f04
The app is not public. Screen shot shows the blank pop-up, which is placed in the upper right corner of the map. I noticed in your example, the pop-up is in the lower right. I have tried enabling this multiple times in the Basic configuration screen, Options tab, same result.
Oh wait just looked more closely at the screenshot and it looks like you are using the Basic Viewer app which is an older instant app. I'll test it out and see if I can reproduce there.
What types of capabilities does your app need? We have several instant apps that are using the latest updates and are more mobile friendly than the basic viewer. One option to take a look at is the Sidebar app to see if it fits your needs.
I was getting confused, Basic vs Basic Viewer vs Minimal. I need a very simple application, that does not allow sharing through social media and similar. I think this was why I chose one Basic app over the other. My users need to click on the feature, which opens a pop-up to show two pieces of information. No print widgets, social media, sharing, etc. Ability to turn on/off operational layers, legend, basemap gallery, measure, scale, and details widgets enabled, the basics.
Thanks for your help! Jay
Here are two examples of apps that might work for you.
Here's the sidebar app
And here's media