I have a webmap containing a Map Image layer that I am viewing in the new map viewer. For some reason it does not recognize any attachments for one of the layers. If I switch back to the Classic Viewer, I can configure the webmap to view attachments.
Is there incompatibility with map image layers and the new map viewer? I know Feature Layers do support viewing attachments in the new viewer.
Having the same issue. Was a resolution found?