Hi,
I am having a similar issue. I have created a feature class in an enterprise geodatabase, enabled feature access, ticked on create, delete, query, sync and update on a non versioned feature class, added the feature class lever rest end point, shared internally and to the correct group, as well as configuring the pop up. I can edit in my web map and see the layer in the collector map but cannot tick the layer on. Any ideas would be most appreciated.
Thanks in advance,
Mark