This issue is fixed today.

You need to filter on the new field called "TaskNumbers" - the "TaskNumber" field is deprecated in v21.

In V21 the same item can be added to multiple tasks with different labor types on each task. The TaskNumbers is now a string field of comma separated task numbers and lists all tasks this item is part of.

You should use the Contains operator to search for your Task Number as that will search for your task number anywhere in the string.

It is recommended to open the Project in Project Editor when filtering for task numbers as that data populates correctly when you open project and sync with tasks.

This updated v21 client build has the fix

Version: 21.23.4650.0

See the screen shot... If you were to run the report with this filter, it will show empty. Filtering by task Number is not working. It used to work before...

Can you please clarify this request? Are you referring to filtering in a project by Task Number and then running a report on the filtered data?

This is the version I am using...