Detect nodes that fail to compute to new nodes.
Detect nodes that fail to compute to new nodes.

* This can be an efficiency issue.

* Only active for debug mode.

wfxiang08/Nuitka,tempbottle/Nuitka,tempbottle/Nuitka,tempbottle/Nuitka,kayhayen/Nuitka,kayhayen/Nuitka,wfxiang08/Nuitka,wfxiang08/Nuitka,wfxiang08/Nuitka,tempbottle/Nuitka,kayhayen/Nuitka,kayhayen/Nuitka