Since the PHB2 changed my output routines I went back and found some things that were wrong in martial power and the original PHB.
On the left we see a cascade from a dynamic tag into the Special tag failing. On the right we see a corrected version
I've found the following powers had the problem:
Prismatic Beams, Prismatic Spray from PHB 1
Luring Focus, Headstrong Bravery, Flawless Snare from Martial Power