Force sensor not dynamically enabled

[kracon7]

Hi,
I'm new to vrep and may have misunderstood the dynamic simulation. Really appreciated if I could get some insight here.
So I have been trying to model a raspberry for my manipulation task and here's my rough design:
https://drive.google.com/file/d/1RnVRV4 ... sp=sharing
The basic idea is having a few force sensors that can be broken connecting the outer red shape (raspberry) and the inner receptacle. If all force sensors were broken then the raspberry can be pull down. However when I ran the scene the force sensors weren't dynamically enabled.
Also, my plan is to have inner part static and outer red part non-static. However if I check the red part "body is dynamic", both inner and outer will fall down to the ground when running the simulation. How should I set these body properties for the features I'm trying to implement? Thanks a lot!

[AHARR64]

If you want to have the force sensors dynamically enabled, the Child must be dynamic, not the parent. Make the 5 children all dynamic, and the force sensors should become enabled as well. You can tell if something is dynamically enabled by the ball bouncing icon next to them.
See http://www.coppeliarobotics.com/helpFil ... ations.htm to get a better understanding of dynamic simulations, specifically the section on dynamically enabled force sensors.