BluEcho,

Does it help? Yes***!*  I think that just about nails the problem, at least for Poser, for D|S I still need confirmation.** The C pyramid uses "static  1" in both the slave and master channels, so "static  1" looks like it is the problem. "static  1" is used to prevent a channel from changing it's value when a frame change happens in an animation, it's what Poser uses when you turn animation on or off for a light or camera. In the past it has never stopped ERC (or anything else), from working within a single frame. Looks like that has changed with P7.

Thanks for your help.