I succesfully created my first Collaboration between Portal and ArcGIS online - I can see the FL in the AGO folder but I get an error whenever I try to add it to a map:
https:// ... /FeatureServer?f=json status: 504
I thought status 504 was generic for a timeout?
there are several layers in the FL I'm sharing and I'm not above splitting them into smaller groups or even publishing one at a time if that's what it takes ... thoughts?