Variables not completed in ORCID validation email

Hello, we use the ORCID validation email sent to all co-authors.
I noticed that the variable {$submissionId} and {$editorialContactSignature} are not populated with the submission number and editorial contact name when the letter is sent out.
Is there a reason as to why ? As a note, the manuscript title ( {$submissionTitle}) and journal full name ( {$contextName}) are pulled into the letter correctly.
We are on OJS 3.3.0.11.
Thanks for any help!

Lucia

@lsteele do you have a customized email template ?
and is it possible to see an email without enclosing the privacy of the co-authors?