I hope that question peaked your interest. I joined up on Christmas Day and have no problem with my higher quality photos. But on my lower quality, highly grainy photos and half-tone printed pictures Lr can't handle them. On screen in Lr - beautiful - all my edits are there. Then I hit Export and the changes I make relating to sharpening and noise reduction (in particular) don't Export.
i am exporting in JPEG and high resolution settings.
Is it a problem with the programme or my laptop operating system??
To evaluate sharpness and noise reduction, you must view the image at 1:1 (100%). Any other view will be inaccurate and misleading.
Please post screenshots of an image at 1:1 in LR, and of the exported image at 1:1.
A screenshot of the export settings could also be useful.