I haven't been able to download the incursions since I got this game on PS4. I've been seeing the same problem for others who are playing on Xbox One. I have not seen any responses from the devs on this reddit on this problem and I am very frustrated that nothing is being done about it, nor has it been acknowledged. I don't know if it is frustrating for a dev to see this message over and over again without ever being fixed.
"Checkout Failed, Please try again"