new powerbox pro cant turn on ether1 poe long cable

Hello Guys,
I have brand new powerbox pro and when I try to set with this command /interface ethernet poe settings set ether1-poe-in-long-cable=yes I get "bad command name settings (line 1 column 25) is there something they changed that you cant set this anymore in terminal?

Tim

I have the same issue.

I tried to use it the normal way (where I would have to turn on long mode) and it worked, so maybe they just made it default always on?