Rendered mix file playing back slower.

Inadvertently recorded a project at 44.1-24 bit. When I play the rendered mix back it is playing back slower. Have tried everything I can think of. Exported at 44.1-24, 48-24, 44.1-16 but they all play back slower. Tried changing the sample rate of a track, in a project, to 16 bit, rendered the file and still plays back slower. Tried exporting into new project, still no go.
 
Help! Driving me nuts! Been using Sonar for years and have never run into this.
 
I'm on Platinum build 2017-01

Thanks for any help.

Art