If you're unable to see all the tasks assigned to you in Assignments, consider the following:
Assignment Visibility: Assignments should display all items you've assigned to yourself and others. If you're not seeing a specific task, verify whether you assigned it to yourself or someone else.
Filter Check: Ensure that you haven't applied any filters that might be hiding certain tasks. Sometimes, filtering options can inadvertently conceal tasks from your view. Double-check your filter settings to make sure all tasks are included in your display.