I'm experiencing an issue on WAB v.2.9 with widget Batch Attribute Editor.
I loaded in the App a WebMap with a collection of group layers, all in one service, published as FeatureServer.
But when I try to set Batch Attribute Editor Widget I can't find Editable layer in Layers section.
If I put another services without Group Layers it is able to find layers in the section.
Do you find it?
How do you solve this?