Dear Expert,

     We customized some MASK to collect data via SNMP collector, there are some metrics share same name but different parttype. We found that such metrics will not be collected, and the log show following kind warning:

WARNING -- [2017-10-21 15:24:17 PDT] -- ValueOffsetFilter::processValueWithOffset(): Test_76: Could not calculate new value: ... property 'StUnitSz' not found.

     We guess this issue related to the MASK definition, and we use mibbrowser to define the MASK, not sure but it seems works fine if each metric have unique name. Could you please give some suggestion?