attempting to use chargeAccountModified in workflow but the rules aren't returning any approvals

Summary:

We have a new requirement to route POs with change orders where the charge account was modified to a group.

Content (please ensure you mask any confidential information):

We found the PurchasingDocumentDistribution.chargeAccountModified attribute in workflow config rules, but we can't seem to get it to evaluate against a value. I've tried PurchasingDocumentDistribution.chargeAccountModified equalsIgnoreCase "yes" and PurchasingDocumentDistribution.chargeAccountModified equals Boolean.TRUE and neither are working. Anyone know what I am doing wrong?

Version (include the version you are using, if applicable):

25C

Code Snippet (add any code snippets that support your topic, if applicable):

Rule Name	:	Rule1
Rule Condition