In SignalTap II, Node finder doesn't detect the node even though it is visible in Viewer. Any ideas?

It is considered applicable to the following knowledge databases:
https://www.altera.com/support/support-resources/knowledge-base/solutions/rd08152013_498.html

It seems that the top design is xxxxx.vhd (lower case) and the Entity name is XXXX (upper case), so it could not be displayed on Node Finder.
This can be resolved by unifying the top design name and entity name in either upper case or lower case.

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