In case the transparency colour isn't showed correctly please update computer's colour management scheme ICC sRGB profile with the latest one downloaded from this webpage here. Download and save file sRGB2014.icc then in Control Panel\All Control Panel Items locate and open Colour Management and open tab All Profiles where press the Add... button and add the newly downloaded sRGB2014.icc file. Close Colour Management window restart the computer and now continue working with Photo Clip on photo images to cutout objects. Save the resulted image directly.
Should you contact the support team, please enquire by submitting new ticket.