simple queue stops working

Hi,

I have discovered that after some time, simple queues stops working, until they are disabled and re enabled like so:

 #    NAME		TARGET				RATE			TOTAL-RATE
 0   queue5		10.200.0.0/16			0bps/0bps		0bps
 1   queue2		89.174.247.243/32		0bps/0bps		0bps
 2   queue3		ether8				0bps/0bps		0bps

When I disable them all by disable [find] and reenable by enable [find] everything starts working and the traffic is visible on queues

 #    NAME		TARGET				RATE				TOTAL-RATE
 0   queue5		10.200.0.0/16			0bps/0bps			0bps
 1   queue2		89.174.247.243/32		851.8kbps/50.2Mbps		0bps
 2   queue3		ether8				26.8kbps/2.1kbps		0bps

Some of the targets are bridged, my bridge settings are:

/interface bridge print detail
name="br-test" mtu=auto actual-mtu=1500 l2mtu=1500 arp=enabled arp-timeout=auto mac-address=64:D1:54:65:C2:6F protocol-mode=none fast-forward=yes igmp-snooping=no auto-mac=yes ageing-time=5m vlan-filtering=no dhcp-snooping=no

/interface bridge settings print
              use-ip-firewall: yes
     use-ip-firewall-for-vlan: no
    use-ip-firewall-for-pppoe: no
              allow-fast-path: yes
      bridge-fast-path-active: no
     bridge-fast-path-packets: 0
       bridge-fast-path-bytes: 0
  bridge-fast-forward-packets: 0
    bridge-fast-forward-bytes: 0

I am using RouterBOARD 3011UiAS current-firmware: 6.48.6 . This happens on 33 routers currently. I think, that it started to happen when I putted some mangle rules on and /ip firewall connection tracking became active .

Additional info, that I have just discovered. Simple queue does not working after reboot. Disabling and re-enabling queues fixes the problem. If the router is working without reboots, queues are working fine.

Just discovered the same with v7.9.2 with parent stopping if child enabled, but only on Mipsbe (vs Tile).

/queue type
add kind=sfq name=sfq

/queue simple
add limit-at=2M/10M max-limit=20M/40M name=PCQ queue=pcq-upload-default/pcq-download-default target=192.168.71.0/24 total-queue=sfq
add name=Xbox parent=PCQ priority=3/3 queue=pcq-upload-default/pcq-download-default target=192.168.71.200/32 total-queue=sfq

/queue simple move "Xbox" destination=0