Hi!
When restarted our router 'forgets' that traffic flow is enabled.
Settings are ok, everything works just fine.. until the reboot.
"/ip traffic-flow target print" shows that target is enabled, but no packet is sent unless I set "enable=yes" again.

any suggestion?

This is old fixed bug. Try search in forum.
Use last stable ROS version 4.11.

upgrade your version to the latest stable

thanks!!