In VP’s FX window for Title Studio, the 3rd column (if 3 columns has been selected) has a heading with a twisty called Composite. Opened, it has a field called Apply Mode which is probably defaulted as None. Changing it to Normal (or other alpha choice) will (should) solve the background problem.
Within Title Studio (Launch UI Window), if the same thing happens with no bg, go to the 3rd icon from the L just above the preview window and open the twisty and select the 3rd option, Composite over Background. BTW, the same applies with Particle Illusion within the PI interface.
Yes, that did it! I tried all of those settings ACCEPT Normal. Uh-huh… So, its possible to have one FX - pI - at Normal and another - here my issue - set to somethoing else. Why would this be a good thing?