We are experiencing a 502 bad gateway on Graph API for every flow that uses this action. Is it working for anyone else or is it just out tenant?
To test you can just create a word document in a SharePoint Document Library, create a manual flow with the action Convert Word Document to PDF, picking your word file as the parameters. Then try and run it.
ours are all failing with
"status": 502,
"message": "There was a problem connecting to Graph API. Please try again."