Does microsoft know you are going to use UWP?
You should tell Microsoft your working with Clickteam since they are involved/knowledgeable with our UWP export module.
Then contact Chris -- firstname.lastname@example.org he is our point of contact between Clickteam & Microsoft.
Be under advisement that parts of your game may need to be redone and reworked -- If you have huge objects and animations you might have to change it to work acceptably under the UWP module. Its not always as simple as file build sadly.
You might have to do some work optimizing your game and also wait for us to suggest changes and/or debug issues encountered.
We have got some games working really nice but your game has to be highly optimized to run well and we are still working on various areas.
Its certainly not as simple as -- The update next month is going to fix all your problems -- it won't -- most likely we will need to get your MFA and work on it directly.