known agent has same bios uuid

[ortoscale]

veeam was installed on machine with name x and its under unmanaged in veeam vbr.
its impossible to remove that machine.

x was put into domain and renamed to y.

we got this Unable to install backup agent: cannot connect to Y Error: Known agent X have the same bios uuid but different connection point Y

agent removed from Y
x is still listed under unmanaged
we got this Unable to install backup agent: cannot connect to Y Error: Known agent X have the same bios uuid but different connection point Y

its a loop. do i need to delete record directly from DB?

open support case for such simple scenario? i hope not.

[ortoscale]

sub question would be how to remove machine that doesn't exist anymore (it's renamed , joined to domain, agent uninstalled) from unmanaged?