Sims cancelling actions with infants and constantly putting on the ground

As this report contains multiple bugs and we may already have active dedicated bug report threads opened for them here "Compiled list of reported issues" this thread has been closed. We're currently tracking a few different issues with infants, please select the bug report that best describes your issue and be sure to add your information to that open thread:

Check baby interrupts all attempts to care for baby 

Sim keeps putting infant down before putting them in crib et al. 

You can also look over the Compiled list of reported issues if these threads don't accurately describe the issue you're currently seeing. If there isn't an active thread dedicated to the bugs you're experiencing in the link above, please go ahead and create a new bug report, one per each individual bug.