Collector won't Download a map without it being opened first?

[PeteCrosier]

I have a map that won't download in Collector without being opened first and allowing it to load - there's quite a lot of layers so it takes ages to load. The features are all hosted on-premise in Server and secured. If I don't open the map first then I'll get messages about invalid tokens. Any way to stop this?

[MiaogengZhang]

After you click Download in map gallery, have you waited the map to be load before click download? Do your map require sign in to access server feature service?