...near as I can figure the bug is causing one part of Poser to see the actor as locked which is in conflict with another part which is seeing it as unlocked. Would explain why my unlock pose wouldn't work on those specific locked parts where the conflict is happening.

There's been a few people lately having gen 4 readscript weirdness with M4/V4 and Poser 11. Unresponsive dials mostly.