Have you saved your C4D file? Have you made sure the Cineware effect is looking at the right file?
Without exact system info, version info and comparative screenshots nobody can tell you anything. An UVW tag by itself is no reason for any erratic bevhavior.
Thank for reading my question, I actually had the wrong render settings, I figured it out! Thank you
I'm glad that you got it sorted. Thanks for reporting back.