I upgraded to the latest version of Lightroom yesterday. I have discovered since then that the only profile available in the Camera Calibration profiles pop-up menu is Adobe Standard. This applies to Lightroom CC, Lightroom 5 and ACR. Furthermore the folder where the profles were stored is missing. This is a problem as I have lost a custom profile for editing the white balance in infrared photographs. What is the likelycause of this situation and how can it be remedied?