Based on viewer requests I made a couple videos on regeneration failures in Creo.
The first is a lecture style video and covers the typical causes of regeneration failures, how to prevent them, and a three step solution process. It is admittedly a bit dry as I am talking to a bunch of Powerpoint slides:
The second is the actual demonstration where I go through 3 part models and 2 assemblies with multiple regeneration failures and show how to diagnose and repair:
Regeneration failures can be particularly frustrating in Creo especially for newer users so I hope these shine some light on the darkness.