using image processor from RAW format to JPEG, the images are suddenly very muted colour, greyish tone, and just awful looking.

Any ideas as to why, when I am converting a group of images through image processor into JPEG, the resulting images are AWFUL.  I have been using this process for years without a concern, and suddenly the JPEG files are very greyish, muted tones and just terrible looking… HELP!  I'm WAY too busy right now to be dealing with this and having to manually save each image to JPEG