@DeadFishy It may be that when they added infants to the game it changed toddlers heights so that now they're a bit shorter and they get lost in the bed itself after you summon them to the teleporter. The bed itself may be the issue. I never noticed it until I started using poses, but not all objects of the same kind are the same height off the ground. And that's not just a cc thing. For example, not all beds made by Maxis have the mattress top the same height off the floor. When I posed them on one bed the sim(s) may be floating above it or be sunk down into it. CC beds, sofas, and chairs can be all over the place in terms of surface heights above floor level.
In this case the bed might be just tall enough that it's above the toddlers head so you can't click on them. If you remember where you got the pose from you can go back and see if they mentioned a specific bed or provided a link to a particular bed.
I hope this helps and that you can find a solution. That looks like a really sweet family pose.