Project Budget Approvals basis project role

Summary:

We have added a Skip rule to handle the scenario in case if the project doesn't have any key member assigned with the role then it should skip that rule.

and if the project has the employee assigned with the specific role then approval notification should get triggered to that user.

Skip Rule : contains(null,/task:task/task:payload/ns0:project/ns0:ProjectTeamMember/ns0:TeamMemberUserName)

However, even when the role is present on the project, still the approval notification is getting skipped and the rule is not working as expected.

Content (required): How to achieve a scenario where we have few project roles which are optional at project level along with Project Manager role. We have to define a approval rule if role is Project Manager then it will go to project manager and if other optional roles exist then trigger notification to them in parallel else skip those rules.