Whether the contact sensor can detect collisions from Deformable Objects?

[shaoxiang]

I want to detect contact or collisions from Deformable Objects.
I have added a contact sensor to the robot rigid body.
If there is a contact or collision from the rigid body, the contact sensor can detect it,
but it cannot detect contact or collision from Deformable Objects.
Is this a known issue? Or maybe I have misconfigured something?
Or is there another way to give contact or collisions with Deformable Objects?
Thanks!