Do you have the same issue if you follow the OP’s steps to reproduce it?
Provide extra information to complete the original description of the issue:
To add to this:
On PC, I can go to the Official/OneStore directory via File Explorer and delete/remove Marketplace items and the items will now be deleted on the PC, but the items will remain installed on the two Xboxes.
There, at least, is a workaround for PC — don’t uninstall content via Content Manager.
Unfortunately, I cannot go into the Reserved Space on the Xboxes and delete individual items this way.
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