I was having an issue where my pawns would periodically just stand still without choosing a task to do, they wouldn't fill their needs and just stand indefinitely without eating, sleeping, etc. I noticed they never have water in their inventory and I have RimFridges set as the only stockpile zone for water (since it turns into ice in the freezer causing indefinite bill filling loops). But if I have the pawns manually pick up water from the fridge, they snap out of it and go about their business. Seems like a bug