Failover and load balancing connection

Recently, I bought a Mikrotik router rb 4011. Now I’m configuring it and faced with a problem.

I need to configure it to work with two separate ISP providers, configure load balancing and failover.
So, after configuring routes, NATs and Mange rules I faced with a problem. Connection on end point uses disappears after switching channels from first to second.
After troubleshooting the problem I noticed that in firewall window, connections tab, connection through 1 channel didn’t change into second channel.

I’ve checked a routes and mangle rules as I found in a WIKI Mikrotik recently. Routes and Nat, and Mangle rules configured correctly. Connection on a router switches between channels, I can ee it through ping tool on Router OS but connection doesn’t switch on end users - system doesn’t change connection into second channel. I’ ve used this configuration https://wiki.mikrotik.com/wiki/Manual:PCC

Please, provide me I a right answer to configure it.

Please find the red grain of sand on the beach at Monaco…
Without looking at your config that would be near impossible.
Please post your config
/export hide-sensitive file=yourlatestconfig

Here is my config
myconfig.rsc (2.81 KB)