DaVinci Duo 2.0A + Simplofy3D: Temp settings not sticking

I'm using Simplify3D with my unmodified 2.0A. I changed the temp settings to 90F for the bed and 230F for the hot end. When a job is started the machine warms to those temperatures, but then the extruder drops down to 215 and stays there. This is causing issues with delamination. I had one print where the temp actually stayed at 230F, and I didn't have any layer delamination. All the other prints have dropped and all of them delaminate. Any clues as to what I may be doing wrong?