Action progress bars no longer are interrupted when a new action is added to a Sim's queue.
Fixed in Patch 1.68.154/ 1.33
If you're still experiencing this issue, please create a new thread.
My Sims will stop doing anything and either stand idle or go do something random (seems 50% of the time for either result) if I put more than one action in a queue for them to do. In other words, i can't queue. And I am working with a family. I have to literally have one thing for each Sim and repeatedly click on each to make sure they are doing their action. If they finish, i can put a single action in. It glitches otherwise. This became real worrying just today (June 17th) as my toddler nearly starved to death because I told eh to potty then eat. She pottied then just stood there, her queue empty of any other commands. I didn't notice because I was trying to get Patchy to stop pretending to harvest the vertical gardens (another bug I'm looking for the posts on to add my information). Because I was distracted I didn't notice until she was so far down on her hunger she was practically taken away, I'm sure. And she didn't even throw a tantrum or break the dollhouse right beside her or anything. Just stood there like a statue.
