Are you saying that LR is not exporting all of your changes (Exposure, Contrast, White Balance, ...) or is not exporting noise reduction and possibly sharpening changes?
What version of Lightroom? What operating system?
TThx for the reply.
Using 5.0 on Win 8 64-bit.
seems to be remembering my crop and other basic settings but the luminance and small color enhancements don't seem to be coming through.
You should update to Lightroom 5.7.1. Just go to Help/Updates and you will be guided through the update process.
As Jim said, you should run the most recent version of Lightroom. Your problem is a known bug in Lightroom 5.0
will report back with screenshots if the prob continues thereafter.
Sorry for troubling everyone. The update fixed the problem. I thought they were automatic updates. Clearly they were not. All fixed now.