Error in pre-processing in SNMP test

[marckam]

Hi Friends,
I have sometimes the error "Preprocessing failed for: 83
1. Failed: cannot convert value of type "string" from octal format: invalid value format" in snmp test.

Sometimes the item is read, sometimes, isn't.

The host is a Mikrotik and the type of monitoring is SNMPV2 agent.

In snmwalk, I read the value with success!
The Preprocessing steps include Octal to decimal convert.
I migrate zabbix from 3.2.3 to 4.2.3.

Thanks

Marcos Kamada

[1berto]

What is the result (from server) of the snmp_get and/or snmp_walk?