Hello,
Device: CRS328-4C-20S-4S+RM
I did configure port isolation in my config,using switch - port isolation - enable forwarding override to the uplink port.
In Winbox this is displayed properly.
On the terminal, I can confgure/add these also using
/interface ethernet switch port-isolation
set 0 forwarding-override=sfp-sfpplus4
However, once entered, it does show up in Winbox, but with export I don't see these commands anymore
Tested both and 6.47.9 (long-term) and 6.48.2 (stable)