jit.gl.cornerpin problems

Ricardo's icon

Hi. When I use jit.gl.cornerpin, one half of my video becomes stretched. This happnes when i use any jit.gl.slab's.
The jit.gl.slabs work with jit.gl.videoplane and with jit.gl.mesh.

Can anyone shed some light on this?

Max Patch
Copy patch and select New From Clipboard in Max.

Please see this example.

Rob Ramirez's icon