Does anyone have any solutions to my online layers not showing up? Each map I click on it gives me a message saying my layer(s) are unable to upload. I have tried creating new maps with the feature layers and it still doesn't work.......They do work properly on our collector app though. Thank you!
Are the layers coming from hosted feature services or ArcGIS Server services? Just a guess, but maybe they were still working in Collector because they had been taken offline? If you can post a dev tools or Fiddler capture of the issue here I would be happy to take a look.