Lock/bond to animated surface not always working


Hi, here is my question:
Sometimes, when I add a lock-bond to deform a (BirthGroup) particles, works, sometimes doesn’t.
In other scenes I have working around and I finally get to have some modifiers as cloth -deactivated- and on top of that, an oldschool Affect Region, or FFDs, and it works.
But when I add them from zero, it doesn’t react.
Not affect region, not morpher, not ffds, not wave… but Cloth yes. Do you know if its some weird bug? Thanks!

with standard mod


Aaah, I figured out… me silly…the modifier must be animated, so the vertex are… and became a true “animated shape” :stuck_out_tongue: