I've had parents read toddlers to sleep successfully even in this patch. Usually when the routing error occurs, they can't access the bed or a bookshelf. This also should mean the toddler can't sleep on the bed either if it's the bed causing the routing error.
Also if you use round walls, it causes a lot of weirdness with routing. Learned that out the hard way when I attempted to repeatedly send my toddlers to bed only to figure out that the floors are all janky due to the round wall and that it's the floor configuration that you can see with the tiles causing it to mess up.