DX Netops 20.2.x Performance Management SNMP requests have an error-index of 50.
Release : 3.7, 20.2
Component : IM Polling
Defect: DE490309
The fix for this issue is currently targeted for DX Netops 20.2.8 Performance Management
Note that this is subject to change and there are no release dates that can be provided at this time.
Note that you would see an error index of 10 for SNMP getBulk operations those are only used for MIB table reads on change detection, not normal polling of devices.
This is due to the way the max-repetition count is stored for these requests.