15b5 Crashing with Canon Cinema Raw Lite

Hi Guys,
Trying out Raw controls for Canon Cinema Raw Lite in 15B5, everything in the raw window is greyed out apart from Decode Quality and Decode using, when I change any of those settings to try and activate the others resolve crashes every time.
PC Details - Lenovo P710, 384Gb RAM, Dual Xeon E5 2667 v4 CPU's, Quadro M4000 GPU, win 10 64 Bit, SSD M2 boot drive, standard HD raid for video.
John.
Trying out Raw controls for Canon Cinema Raw Lite in 15B5, everything in the raw window is greyed out apart from Decode Quality and Decode using, when I change any of those settings to try and activate the others resolve crashes every time.
PC Details - Lenovo P710, 384Gb RAM, Dual Xeon E5 2667 v4 CPU's, Quadro M4000 GPU, win 10 64 Bit, SSD M2 boot drive, standard HD raid for video.
John.