I was having the same problem, but I think I managed to fix it. I deleted every instance of Orion on all my devices. Then I followed the instructions on this Lifewire article:
https://www.lifewire.com/how-to-delete-apps-from-icloud-4176011
I used my Mac, but I assume the other instructions also work. I had to delete it multiple times for it to take because iCloud is flaky. But once it no longer appeared after several trials in the Manage iCloud interface, I was able to reinstall Orion and create a whole new, empty default profile with no data from the old profile. Those changes also carried over when I reinstalled Orion on my iPad (only 1 tested so far).
Hope this helps others with sync issues to get a fresh start.