This issue is now old enough to be in school. That's almost impressive.
I assume that the copyright ending in 2018 indicates when the app was last updated, meaning not only is the problem over 6 years old, this whole time there's not even been a tweak to the UI to spackle over the missing functionality.
The text description on the store page (https://www.stardock.com/products/spacemonger) no longer references cloud storage, but the screenshots (from the 2014 build?) still show the Cloud section of the left sidebar. Yes, this is just one part of the app and Spacemonger is the last in the display carousel on the Object Desktop page (https://www.stardock.com/products/odnt), but it's at least contributing to the perceived value in the "more than a dozen" apps that are part of the subscription.
The fact that a major app function doesn't work, with no explanation or apology, makes me suspect everything else being sold. It's not a good look.