@Blunck-TotalFitouts, I was able to test this successfully on the currently in production Qlik Sense Enterprise on Cloud Services and Qlik Sense Business. There was no rolling back of the move.
Have you been able to test this with a space that has less users? Perhaps there is an issue with permissions for specific users or license allocation? I would start with a blank space and see if you are able to move the app to that space, then start adding specific users to the space.
Hope this helps!
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