You'll notice
Artifact copy_from error message no longer mentions 'another organization' as a possible cause
What
When copying content between Artifacts with copy_from fails because the source can't be found or opened, the error message shown no longer lists "is in another organization" as one of the indistinguishable possible reasons.
Why
The error is now slightly less specific about why a copy might fail, though the underlying permission checks for copy_from still apply.