Hi Chad,
Please check out the Addendum for R16.050 from Rick. I hope what he addresses in this ten minutes will solve you problem:
http://www.cineversity.com/vidplaytut/cinema_4d_team_render_part_11
If that doesn’t help, please contact the support. However, I have checked after reading your post the usual suspects and so far no problems came to my knowledge. The opposite was true, lots of praise. Rick talks about the red dots in the Addendum and I hope the reason on your side is the same, in other words—solvable quickly.
My best wishes