Whether I use File>import photos or drag a jpg from Mac finder into the library module, it acts as if there is no photo in the import dialog. Works fine on CR2s. Nothing else has changed. I optimized the catalog and restarted, with same result....
Any ideas or thoughts would be appreciated.
Are you shooting Raw+ jpeg pairs? If so LR may regard the jpeg as a sidecar file for each pair. Try adjusting your pref settings.
From the menu go to:
Lightroom >> Preferences >> General (tab)
Put a checkmark in the box to treat jpegs as separate photos
Explain in more detail this part: "it acts as if there is no photo in the import dialog"
What happens or doesn't happen? Emphasis on "more detail". Start at the beginning, cover all steps and results, leave nothing out. If there is an error message, please quote the exact complete unedited error message.