Topaz Remask 5 "Halo" Around Person When Placed on Color

I recently did a photoshoot of someone using a white background and am using Topaz Remask 5 to cut the person out then returning to Photoshop to add a background color layer under the mask created and for some reason, around this person’s suite, I see a thick line, almost like a halo. The hair looks great as does everything else. I’ve tried adjusting the edge and the recovery slider within the Topaz Remask and I’m not having any luck. Any suggestions? Thanks for your help!