Connie and the other kids were nowhere to be seen, with zero explanation.
Yes, I just saw that episode and I recall it was at night. Perhaps Connie is in a midnight bowling league and wanted to have the baby along as company. Writing imaginary backstories is fun!!!
"It's the system, Lara. People will be different after the Revolution."

It really seemed ludicrous she was so abruptly written out and never seen again. There was one scene with Andy at home with Theo and it was just the two of them. Connie and the other kids were nowhere to be seen, with zero explanation.

she went on maternity leave n never came back no transfer, no grand exit, no character death or anything she was just never shown again, never even returned for a guest appearance just stayed home with the kids she was still married to Andy, she was just married to him off screen