Revit remembers the Disjoin status when moving something. Very good! But this is really annoying when you want to move a View on a Sheet when the Disjoin option is still checked. Revit thinks you are copying the View and prompts the "Selection cannot be copied. Sheet views in this model cannot contain more than one instance of the same view." error. Most users don't know this is caused by the Disjoin option and are confused. Please deactivate the Disjoin option when moving a View so this is resolved by default.
When you are at it, it is not possible to Copy or Mirror a View on a Sheet yet these options are also available prompting the exact same error message. Just deactivate those options and remove the error message entirely.
