Failed to Load MIB file to NNMi 9.23

Hello

I have problem to load MIB file onto NNM application, See Error output bellow.

Failed to load MIB modules from [/var/opt/OV/shared/nnm/user-snmp-mibs/TIMETRA-TC-MIB.mib]: Validation failed for entity com.hp.ov.nms.mib.model.MibTextualConvention with id 326481655770:
The value length of 96 is greater than the permitted length of 80.

Thank you