Hi ‌,

Is it only for this action or do other actions have the same/compareble issues?

Do you use a supported webbrowser?

The only environment I have seen with comparable strange issues (empty fields) was an environment where every webapplication had a non-default portnumber (brrr) and a load-balancer/reverse proxy was in front of the SharePoint farm doing the https>http and portnumber translation. The solution was in the reverse proxy in front if I remember correctly.

Try also to logon the SharePoint server and check if you see the same behavior.

Cheers,

Rick

do you experience the problem consistently for every single configuration dialog opening?

or is it intermittent and if you try to open configuration dialog several times in a row, isn't it sometimes populated correctly?

Rick,

This is an all up SharePoint dev server with a separate database server. No unusual ports, no LB.

Logged on the server, I (well, the admin account) see the conditions listed. I would think it was permissions, but when I check permissions, it is checked to allow all users to use all actions.

Was using Edge, which has never given me an issue.

UPDATE:  Seems to be sort of working at the moment. Just worked in IE on my workstation. It is not working in Edge. Not working in Firefox.

When it is not working, it is consistently not working. I have had success with IE. Other browsers not working.

I affraid you will have to stick with IE for design, it's only officially supported browser - see  

Yes, that is why I asked if you were using a supported browser. Thankfully NWC and SharePoint 2016 is less strict.

Please "close" this question when you think it has been answered for you. Thanks.

The curious bit is that using Edge and Firefox on the production or QA tiers is not an issue.

As long as anything is working, we are in business.

it may depend not only on browser but as well on exact release/version/patch level of forms, workflow, sharepoint IIS, etc,  on single envs.