Bounding Wlan + Ether

Hello everyone!
I have two links:

  1. 2 x ubiquiti nanobridge-m5-25
  2. 2 x ubiquiti rocketdish + R52Hn + rb 433UH
    i want to set up bounding interface with them: wlan + ether3 (bridges)
    when they work with out bounding all ok
    with bounding - rocket dishes dont pass traffic through wlan, bridges works

where is the problem?
link.png

and how i can downgrade firmware from 6.1 to 5.25 ?

unfortunately, i have not recive any help :frowning:

download the routerOS you can from http://www.mikrotik.com/download

drag it into the files directory via winbox, then once finished transferred the files, issue this command “system package downgrade”

download upgrade package?

Dont pass traffic wlan1-rocketdish (
bounding.png