snmp and HTB queues counter problem

RouterOS Beginner Basics
1

Hi,
i have two CCR1036 and both show the same symptoms. On both I have set up some HTB queues and they seem to work.

/queue tree print oid

shows me the oids to query and

/queue tree print stats

shows me the numbers in the console (and they are changing).
Using snmpwalk I try to read these counters but they seem to not be updated. The numbers are only updated when I query the counters on the console.
Both routers are on v6.20 and have been rebooted after setting the queues up.
Does somebody know what is going up here?

2

After serveral days nobody has some advice, clue or hint?

3

snmp doesnt update often.