Welcome to the Make community!
You are missing an “s” for attachments.
Client Name: (?<client_name>[\w\W]+?)\s+Client Question: (?<client_question>[\w\W]+?)\s+Additional Info: (?<additional_info>[\w\W]+?)\s+Attachments:
Proof: https://regex101.com/r/CRWvW3/1
Hope this helps! Let me know if there are any further questions or issues.
— @samliew
P.S.: Did you know, the concepts of about 70% of questions asked on this forum are already covered in the Make Academy. Investing some effort into it will save you lots of time and frustration using Make later!