For Juniper devices that are using Ipv6 we notice that Spectrum is displaying the incorrect IPv6 address then what the interface is being configured as.
Release : 21.2.x
Spectrum was using the local Ipv6 address and not the configured one for the interface
Patch Spectrum_21.02.08.D148 has been made available for 21.2.8.
This is scheduled to be fixed out of box in Spectrum 22.2.6 under DE548359.