Migrating in plesk shows an error. Checking the IP address pool in plesk show this
Trying to remove it produces an error:
Error: Cannot remove the IP address 2607:5200:1800:1000:226:18ff:fe24:4e35 because it is the last IP address present on a network interface.
Restart plesk and re-read the IP address pool in plesk > Tools and Settings > IP Addresses > Re-read IP’s