Port Mirror not working on hAP AC

I have an hAP AC on 6.47.1 and trying to mirror port 2 to port 4

I use this command:

/interface ethernet switch
set switch1 mirror-source=ether2 mirror-target=ether4

However, I see only broadcast packets when sniffing on a machine connected to port 4.

I’ve tried mirroring any other port to port 4 and it still shows only broadcast packets. Do I need to remove port 4 from the bridge or something?

Is your capture interface in promiscuous mode?

Thank you so much, that was it. God I am an idiot sometimes.