queue tree problem upgrading a router to 5.18

Hi all.
I have upgraded my router (pppoe server + queue tree) from 4.17 to 5.18.

I have queue tree in download with ether2 as parent interface
and ether1 as parent interface with upload.

In new version, no traffic is queued in download with ether2 as parent
and I need to use global-out (and this means double mangle rules…)

I used 5.18 because a second router is also in 5.18 and it works well…but it does not act as pppoe server (only queue tree).

Does someone have some hints ?

thanks.