No Value in Tasks View

[Viewmaster]

Hi All,

When viewing my tasks, the project field (which is not a custom field)
showed 'No Value' in my Tasks View. I see the task fine, but its just the
project from which it is from doesnt show. I am confirmed that the project
plans have been republished. Would there be any particular reason this
happens for only certain tasks, and how can I get the Project field to show
correct values?

Thanks in advance for all your help!