Two recent instances, raised here on 21 March and here on 25 March.
I had received standard user talk page messages, tagged Mentorship panel question and Mentorship module question respectively. When I use the mentor template on their account names (and the additional name shown in the 25 March page history), it is my account name that is shown. That is all fine.
However when I go to my Mentor dashboard, it is as if they do not exist: missing from the Mentee table, omitted from the filter search, and their edits are missing from the filtered view of Recent Changes.