I have a three variable rule that's behaving inconsistently. When I test the

I have a three variable rule that's behaving inconsistently. When I test the rule on its own it works fine. When I test the rule with a CDT in a test process model it works fine. When I test the rule in my Production Process Model it works (value, value, value) but fails when we pass it (null, null, value). Does anyone have any suggestions about how to troubleshoot this issue or an explanation as to why it is happening?

OriginalPostID-188952

OriginalPostID-188952