We've created several collector applications so far and things have been working great. We are using an onsite portal and ArcGIS Server 10.2.1.
However, we recently deployed an ArcGIS for Server 10.3.1 site and when we try to include services from this new site, they do not show up when we open the map in collector. In other words, the if I publish my service on our older 10.2 server, the layers work just fine including related records. If I then publish the same service (same mxd, same underlying data source) to 10.3, the layer will not show up in collector.
My suspicion is that I am going to have to version my data for it to work in 10.3 even though I did not have to do this in 10.2 (server).
Can anyone confirm this?