@haiddasalam - That's a great piece of info to know, thank you!! I overcame the issue by extending my UV's on the object to a 2/1 on the UV, so I just laid out my UV's and extended them horizontally. That seems to be working with lightmass ok.
And the questions keep coming ....
As you can see here, I have a spotlightmovable up against the wall, shining down onto the floor. If you look to the right, you'll see what is actually an animating water effect going over the stone with some nifty reflections simulated via some spec/normal maps. However, this effect only seems to show up in what I am calling a 'player light' in my mind; that is to say, you can only see the effect in a certain relation to the character. anywhere in the scene, I can look down and to the side and see the effect, but under direct light influences, it seems to vanish. The same thing is happening with point lights, etc. Is there a way that I can get this effect to show up where there is light... where I'm intending it to pop?
I apologize for the broad range of questions here, I'm just trying to understand as much as I can about the various issues I'm running into. Again, thanks so much for your help and insight, everyone, you're making this a great learning experience for me!!!