I got the same problem? Do you have any solutions?

In Assets.xcassets --> AppIcon --> show the appicon attribute inspector--> enable the Mac section, then you can see the 1024 icon for mac, add your icon in it and upload the app again

I got this error when restore the DTK: The operation couldn’t be completed. (AMRestoreErrorDomain error 10 - Failed to handle message type StatusMsg) [AMRestoreErrorDomain – 0xA (10)] Any idea ? Thanks a lot.