Full Issue/Use Case
Using “A5 Document to Merge” value from the Campaign.  A Document Request record is created however it is not linking to the Google Doc URL or updating all fields in document action. We are not getting any error messages.

If using batch mode for automation, try to disable it and then click save. Then click to enable it again and this will refresh the settings. See if that resolved the issue of document request record getting created and updating all document action fields.