Hi George,
When you create a new web viewer in FileMaker, the first template they provide is to show an address in Google Maps. That's what I was referring to.
It is interesting that it works in your new web viewer when updating the address. If you download a fresh copy of SQLExplorer from here and run the "Hello World" example query, does the web viewer load correctly?
https://www.seedcode.com/?wpdmdl=9Maybe, after running the query, you could try right-clicking the web viewer and choosing the "Reload" option to see if the web viewer shows then.
Since the stock file is working as expected for me in FileMaker 15-18, It seems to me like there might just be a timing issue in the web viewer on your machine. One thing you could try would be to add a strategic pause in the "Test Query" script just before the "Set Web Viewer" script step on line 355. Add a "Pause/Resume Script [ Duration (seconds): 1 ]" step just before that and see if that extra 1-second pause helps.
Unfortunately, since this is a free example solution built for FileMaker 12, and the stock file is working on our machines, we won't really be able to troubleshoot this issue deeper. If you're unable to get the web viewer in FileMaker working, then the workaround would be to open the results in the browser to view them.
Sincerely,
KC