Configure Screening Widget won't let me add layers

[NicoleSmith]

When I try to add the configure screening widget to my map, I try to click on the Add Layers button next to Analysis Layers and nothing happens. There is no error message, just nothing happens. I have feature layers added to my map, but I can't add them to my new widget. Other widgets work. 

[GIS_System_AdministratorSunshi]

HI There

Did you figure out why this was happening? I am getting the same.

Thanks

[AmyKnight]

I have this problem also in WAB Developer addition.  It was working (I thought in v2.16 Dev addition) but now I cannot add layers in the configuration window.  I have also tried it in v2.18 and the online AppBuilder.   I have tried with new apps and an app where it previously worked.  Any help would be appreciated.

[BenClark]

Similar issue for me, and I'm beginning to think it has something to do with my web map. When trying to configure the widget I can't add any layers, but when I make a new web map with only the layer I want to use for screening and then pull that map into the app the screening widget goes back to working fine. I really don't want to have to rebuild the web map but I'm beginning to get desperate... 😬

[Derek_Bedarf]

I had a raster tile cache layer in my map and found that when I removed it, the screening widget worked. Not a great solution for me, since I need that layer in my map.

[ChrisWoodman]

I had the Screening Widget completely configured with layers etc. and today I cannot use the Add Layers button. The layers are visible in the Download tab but cannot see them in the opening tab. The widget works fine but I want to add other layers and now cannot. Even when I attempt to create a new widget using the screening widget the Add Layers button does nothing. No error just nothing. Very strange. Possible corrupted web app i'm thinking.

[lindsayharmon]

I'm having this same issue. Has anyone found a solution?