How can I do some static physics and use occluder? UPBGE

When I put Occluder physics, objects with Dynamic, Rigid Body and Character physics fall into limbo.
How do I fix this without having to duplicate an item?

An occluder has no collision so it needs to be a separate object with no material, a simplified mesh and visibility turned off.

occluders do not work with visibility turned off.

In UPBGE 0.2.4 works.

you are right, it works in 0.2.4, it does not in standard BGE and older versions of UPBGE.

I use the exact 0.2.4.

to answer you original question, use simple objects as occluders like planes or cubes, and i personal hide them inside other objects.