I just opened the app as usual to some photos have backed up and everything else is there except my tone curve is gone!
How do I get it back? I know some of the down arrows will hide some items but my tone curve is gone gone! I have been using lightroom for years and have never had this happen...
You've inadvertently deactivated it.
Right-click anywhere inside the RHS panel area and check the Tone Curve option to restore the Tone Curve panel.
Thank you so much! I have been trying to figure this out for weeks!