RBD interpenetration issue

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I'm new to Houdini and was trying out a simple rigid body simulation example using RBD solver. The scene
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is simply 5 cubes falling onto a plane. However when I simulate to 35th frame, as the scene becomes nearly static, then suddenly interpenetrating happens. Using larger number of collision passes seems not helpful.
Does anyone know what I need to change to make this work? Like stay static as it becomes.
Thanks!

Attachments:
RBD_5cubes.hipnc (318.7 KB)

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Hi!
Set the Collision Geometry option for plane to Implicit Plane and boxes to Implicit Box with a little bit offset to fix this.
I highly recommend to use bullet solver instead because it is so faster than RBD Solver.

Attachments:
RBD_5cubes FIXED.hipnc (318.8 KB)

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