If you start a task with “-” it will not properly sort or recognize the section it’s assigned to. Hyphens in other parts of the task title sometimes cause the same effect.
I’m now thinking that this might be related to my earlier post about not being able to drag a sub-task back to the project list (out of the parent task).
This also may be related to my reported issues that the tasks were created via CloudPipes API import (Smartsheet rows to Asana tasks). I’m calling it a fluke do to this issue.