Rigidbody sinks kinetic rigidbody when it moves randomly

Release Type: Official Release

Version: 4.2.0.2043

Platform(s): Windows

Describe the bug
Some rigidbody(as BodyA) sinks another kinetic rigidbody(as BodyB) if following conditions

• BodyA is standard rigidbody(simple sphere)
• BodyB is kinetic rigidbody(wide box)
• BodyA is on BodyB
• BodyB moves to horizontaly random

To Reproduce
Steps to reproduce the behavior:

1. create project as New Game
2. add sphere collider to sphere
   set friction as 0.5
3. creating box model and kinetic box collider under the sphere
4. set script to move box with cursor( my source
5. run project and move box to random direction

here is my sample project: https://github.com/itn3000/StrideKinematicTest

Expected behavior
the sphere slides on box and does not sink to box

Screenshots

Log and callstacks
no logs.

Additional context

• I changed CCD params, but nothing affected.
• it was occurred even if moving box slowly(half speed)

Start by running the linked StrideKinematicTest sample and inspect MyGame6/MoveCube.cs to reproduce the sphere and moving kinetic box setup. Compare slow and random horizontal movement, then verify that the sphere slides on the box without sinking; no repository source file or test is identified in the issue.