Generate statement "failed to load pdf" error under WFC

Summary

Generate statement "failed to load pdf" error under WFC

Content

Hi team

One of our managers, is trying to generate an award letter in workforce compensation for her 2 direct reports. When she does it, she gets the error of 'Failed to load PDF Document' for 1 employee and letter got generated for another employee
We are not sure what the issue could be here. We are able to replicate by going to compensation/Act as proxy manager/choose Manager, try to generate award letter. 

Thanks in advance.