ECMP+ forwarding (netmap)

RouterOS Beginner Basics
1

Hi everyone. Need help community. I have are two channels:

  1. PPP_OE staic ip 178.x.x.x
  2. Dynamic receives local ip 10.6.5.150 for example.
    Channel balancing ECMP. All works well, except for port forwarding.

Аfter forwarding, the local computer from the outside, then it is not available. The “forward chain” i see.
file.jpg
Is there a solution for ECMP and port forwarding ?