Toddler Disappeared From Family Icons?

I am using a particular mod that has been updated. So far, my limited play with it hasn't caused a problem. But in my game my Sims were advised it was time for their check-up. I almost had the uncle take one of the three Toddlers with him, but I failed to do so. However, seeing that the older Sims could only bring one Sim with them, I had the Dad take one of the Toddlers with him, leaving the mom to take one of the other two. However, that's when I noticed one of the family icons on the bar was missing. :open_mouth: Mom had Twin A, but Twin B was still on the staircase coming down. The other Toddler was fast asleep in his little bed. I'm very much worried at this moment in time. I won't save my game until I see if Twin A returns to the family icon bar upon the dad's return. If not, they better have a popup explaining what the heck is going on! And, of course, if things are bad, I will exit without saving. Unless I deem it worthy to just play through. But yikes! I did add another mod and some cc to the game, just prior to this. I would hate to think that making Nectar would be a problem. ARGGG.