health snmp value not available since RouterOS6.11+

Since I upgraded from 6.7 to 6.11, then to 6.19, I cannnot poll the “health” value from my mikrotik anymore.

On each, I have the same values when doing :

/system health print oid 
             active-fan: .1.3.6.1.4.1.14988.1.1.3.9.0
                voltage: .1.3.6.1.4.1.14988.1.1.3.8.0
            temperature: .1.3.6.1.4.1.14988.1.1.3.10.0
  processor-temperature: .1.3.6.1.4.1.14988.1.1.3.11.0
                current: .1.3.6.1.4.1.14988.1.1.3.13.0
      power-consumption: .1.3.6.1.4.1.14988.1.1.3.12.0
             psu1-state: .1.3.6.1.4.1.14988.1.1.3.15.0
             psu2-state: .1.3.6.1.4.1.14988.1.1.3.16.0

But when polling values from snmp, it is empty:

snmpwalk -c public -v2c  192.0.0.1 .1.3.6.1.4.1.14988.1.1.3.8.0
<empty answer>

When I try to list all values from the OID branch I only get:

snmpwalk -c public -v2c  192.0.0.1 .1.3.6.1.4.1.14988.1.1.3
SNMPv2-SMI::enterprises.14988.1.1.3.9.0 = STRING: "main"
SNMPv2-SMI::enterprises.14988.1.1.3.14.0 = INTEGER: 1200

Other SNMP values (interface traffic for example) are working ok.

I need to monitor CPU temp and power consumption for those devices from centreon, so I could write some script to get the value from a script, but snmp seems much more handy …

Am I the only one to have this issue?