Completed tasks in the calendar are now mixed with uncompleted tasks.
Hi @Carolann_Colligan, welcome to the Asana Community forum 
Thanks for providing this feedback about our new My Tasks calendar update. While it’s not possible to reorganise tasks within a specific day at this time, you can choose to view only incomplete tasks on the calendar.
This may be a suitable workaround for now 
Ahhh…it looks like you got the update only partially…? You see loss of function in the monthly view (completed tasks no longer move to the bottom), but you don’t have the weekly view yet.
Hi @Carolann_Colligan, thanks for sharing this screenshot! This feature is still being rolled out so if you don’t have it yet, you should soon!