Sims standing around instead of taking care of infant/toddler

I know there are already some bug report about kids caring, but I was unsure which was the most appropriate post to make, so I created a new one. I apologize if there is a suitable one.

The links below records what happened. (I upload the recordings I make using the game's functions to Google Drive in their original state.)

Repeating 'put down' - 01

Repeating 'put down' - 02

Situation explanation:
I made age up the babies to infant and I paused.
Then enter the CAS mode and change the infants clothes.
Back to Live mode.
As soon as unpaused, Caleb started 'put down' his daughter. So I start record.
In the records, their almost behaviors are autonomously. I only gave to Caleb 'Admire New Possessions' and to mother 'Breastfeed'.
Eventually, their independent actions got in the way of each other, and they just stood there, frozen.
This continued for about a minute in the real time, then I stopped the recording and gave each parent instructions, and then another action triggered another 'Put Down' - the second link.

My game is always set 'Autonomy: Full'.

If Sims' thoughts are displayed in queue, I can delete those. But even after deleting, the Sims often stops working as if something is still in the queue. In this case, it difficult remove even after using 'Object Reset' to the entire family.