Delegation in workflow when using Approval Framework

Hello Friends

We are using approval framework for our journals related to workflow which is configured based on journal source

While using the delegation functionality for a user, we are facing an issue where the workflow process is adding an error step and routing it to workflow admin for all journals

The delegation is done for someone who is on vacation to his superior who is at the next level in approval queue

Any pointers on how to resolve this?

Thanks

Dijesh