This conversation has been merged. Please reference the main conversation: Lightroom: I can't add (certain) custom crop ratios
Original dimensions 7952 x 3501
Wanted to Export as: JPG - 1080 x 717 - File size limit of 300K,
Cropped to a ratio of
After exporting the resulting JPG the dimensions were 1075 x 717 - 5 pixels short of 1080.
Tried not restricting file size, amongst other settings. No luck.
Did an Photo > Edit in > Photoshop.
I did not change the crop and, went straight to File > Export > Export As: JPG at 1080 x 717. The resulting file came out at the right size (1080 x 717).
I was actually trying to help someone remotely. So, I replicated their settings. At least two of us have encountered this problem.