Hello Dgoldberg,
could you please provide pictures, possibly a video.....there are so many things that could be a factor in this, it's hard to narrow down without more information.
for a quick check, i'd say make sure your reflection / refraction settings are turned off - but that is just one of several scenarios i can think of.
Cheers
note - another quick fix I can think of is to turn off the "double sided" - "2 Sided option" so only 1 side of the selected mesh shows - ie - it will only reflect on the side of the normal. ( 2 sided makes both sides visible to the camera )
☯🐉
"To define Tao is to defile it" - Lao Tzu