Thanks for your thoughts.
Under Part-MED and Part-ARA, once a licence has a defined State of Licence Issue, another EASA authority cannot simply issue a new Class 1 independently. A SOLI requires cooperation between authorities and transfer of the full licensing and medical records.
In practice, without that transfer, another authority will not reassess the case.
Surrendering the licence does not necessarily remove the underlying medical status or the historical record, which would still need to be disclosed.
That’s essentially where the deadlock arises.