Issue

This issue appears with custom SmartObjects that were built with input properties hardcoded. When executing methods post 5.1 upgrade, 'Value Cannot be NULL. Parameter name: key' error is displayed.

Symptoms

'Value Cannot be NULL. Parameter name: key' error is displayed when criteria in regards to custom SmartObjects having their input properties hardcoded when built is met.

Resolution

This issue was resolved with Fixpack 3