Does anyone see higher frequency of dpy progenies in C elegans him-5(e1490) strain?

I’ve been using and maintaining him-5(e1490) recently. I see a normal ratio of male production but I also noticed that there is a higher frequency of dpy-like progenies production when I picked normal-looking hermaphrodites for maintaining.

they are XXX from nondisjunction

Came here to say what EJL already said - you’re observant if you noticed the triplo-X Day hermaphrodites.