Can the license be activated and deactivated repeatedly between an old an new server?

SOLVED

We're in the process of upgrading to a new hardware server running Windows Server 2019, and also upgrading the workstations to Windows 10. As we do the setup and testing it would be ideal to run the old server during the day, then move the active license to the new server to test connections and try moving the Sample Company before moving the actual databases.

My question is this- if it takes a few tries to get this working, and the license needs to be deactivated on the old server, reactivated on the new, then deactivated on the new and reactivated on the old for a few times back and forth, will there be any problem with this? It will never be activated on both, but will a few switches back and forth cause any problems?

Thanks for any light you can shed on this.

S