Why does the Node Finder not match any element when searching a specific level of hierarchy using the Select Hierarchy Level option?

Description

Due to a problem in the Quartus® II software, the Node Finder may not match any elements in your design when using the Select Hierarchy Level option. This problem may occur if you have inconsistent upper and lower case in the top-level entity name and file name.

Resolution

To work around this problem, avoid using the Select Hierarchy Level option or ensure that your top-level entity and file name use the same case.

This problem is scheduled to be fixed in a future release of the Quartus II software.