Arjunaraoc added a comment.
The problem was traced to some specific pages, which are translated using google translate.
A test page is created here https://te.wikipedia.org/wiki/user:Arjunaraoc/sandbox_https://phabricator.wi... Arjunaraoc/sandbox https://phabricator.wikimedia.org/T99032
TASK DETAIL https://phabricator.wikimedia.org/T99032
EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/
To: Arjunaraoc Cc: pywikipedia-bugs, Aklapper, Arjunaraoc, jayvdb