Thanks, but does not fix the problem.
Indeed we already set this rule in “main”.
I made a copy of the rule in Printers folder for explicit this printer, which unfortunatly does not help, both rules are “green” in GUI showing that they are applicated.
In v2.0 this worked - we saw all the other values.
In the debug log, there are many empty tags, but we found some tags with value. The vealues we had in v2.0 and see in snmpwalk are not listet in the debug, so there seems to be a difference in the snmp dicovery and the snmpwalk itself.