Hi, at some point in the past 6 months or so we have been having some weird issues with database enrollment where users are definitely removed from the database but are not being unrolled from some courses.
The only pattern I can find is that the enrolments were all from Feb 2016 when the courses were likely created.
The data is not in the enrolment database and because the students are auto-enroled by the external enrolment plugin I can't manually delete them either.
We meta-link a number of courses and some of these phantom enrolments are only 1 or 2 students per course but add up to whole classes worth in the meta classes.
This is causing issues with course messaging and emails out going to the wrong people.
We are on Moodle 3.1.2 20160929