After importing and edditting the RAW files in Lightroom, I add keywords to the photo's. Then I export the photo's in LR to the desired map. In the exported (jpeg) files, most of the keywords are missing. Some are visible, but most are not. What could be the cause?
In the export dialog box, there is a choice to exclude metadata and other options, what option have you selected?
In Lightroom, some keywords can be set to non-exporting. Is this the cause?
How are you verifying the keywords are not present outside of Lightroom?