Process- Manage action items not working

Summary:

I want to clear all the pending actions for employees including Designate Beneficiary, Document approvals etc, when I tried doing this for one single employee it was working fine and all of them were getting closed.

But now when i tried to do this in bulk it shows in report that it is completed successfully and processed for 74 employees without error, but in log it shows an error and even for the employees i checked from enrollment sections the pending action items still exist.

Attaching screenshots of previous process.

Current one:

Error message: