Maybe a bug with multiple contraint in apex scene animate.
Here is my scene with eletra and a box as a weapon.
This weapon has two controls,point_0 control,and world control as a parent of point_0.
Now world control has been constrainted by left hand,and point_0 has been constrainted by right hand.
If i move eletra's left hand, the world control is following,good.But the point_0 control is also following,which is not supposed to happen.
This is quite common situation when working with complicated animations,when characters interacting with props or other stuffs.
But I am not sure if there is other ways to setup correctly,so please open this scene file and test it.
(I'm using 20.5.487)

It's a current Houdini 20.5 limitation that multiple simultaneous constraints are not resolved. This is being addressed for the next major release.

edward
It's a current Houdini 20.5 limitation that multiple simultaneous constraints are not resolved. This is being addressed for the next major release.

Thank you for your reply.