Materia Problem on Planes

Doc Acme

I've had Materia for awhile and finally came up with a project I could use it for.  I don't know if this is a DS 4.20 issue or not, but no matter the settings (used Presets first), I only get a diagonal across the 1/2 coverage. 1 Meter, 10 Meter, the reult is the same.

With all other objects, it seems to work as expected.

For the moment, I duplicate the Materia layer, & rotate 180 deg., but obviously that's a Kluge.

Anyone else seeing this?