Prewrite record event in parent BC does not get fired implicitly after deleting a record in child MV

Hello,

I have a list applet having a MVG field. When I edit or add record in MVG field, it fire prewrite record event in parent BC in either stepping out the record (implicitly) or Ctrl-S (explicitly save) in list applet.

However, when I delete record in MVG field, it fire prewrite record event in parent BC only if I Ctrl-S in list applet; hence, if I step out the record, it does not fire parent BC's prewrite record. It is because I have logic in parent prewrite record. Would you please advise if there is a way to fire parent BC's prewrite record when deleting a record in MVG even implicitly?