RBE does not add work info to a request if the email subject is like "RE:Request Id:REQxxxxxx"

The below rule set was created for Request worklog update in RBE:

('Subject' LIKE "RE:%") AND ('Subject' LIKE "%REQ0%")

Trying to add a worknote to a request by sending and email with subject "RE: Request ID: REQxxxxxx" do not add work info to the request.
"Form Request ID" on RBE:Transaction form comesin as "REQUEST ID: REQ"

This knowledge article may contain information that does not apply to version 21.05 or later which runs in a container environment. Please refer to Article Number 000385088 for more information about troubleshooting BMC products in containers.

The Filter "RBE:Message_M520-Subject-FindFormRequestID" is not able to extract the Request ID from the subject line "RE: Request ID: REQxxxxxx".

The reason behind that was the  Prefix for the Request was set as "REQ" in the form "RBE:Configuration". Since the subject line contains two REQs (one in "Request" and one in "REQxxxxxx") the filter "RBE:Message_M520-Subject-FindFormRequestID" was extracting Request ID as "REQUEST ID: RE" (15 characters starting from the first "Req" found)

To resolve this issue we modified the Prefix value for the Request in RBE:Configuration to "REQ0" (From REQ) and it worked fine.