I have been working in the FamilySearch "Family Tree" for a long time and I have NEVER seen the male inverted.
I'm not familiar with the conditions that cause this to occur but it can also happen on the old pages. It's nothing to do with the new pages. It's easy to change. Just click on the pencil edit icon for the couple relationship, scroll to the bottom of the popup window and click the link:
Thank you Gordon Collett