I am trying to save my images in lightroom with the "long edge" at 3500. My landscape pictures are coming out 5260X3500 so its actually bigger than the original photo (4256×2832). Do you know what I'm doing wrong? I don't have short edge clicked...I've checked! I hope someone can help me figure this out!
I believe this was a known bug on LR 5.3 but was corrected with the LR 5.4 upgrade. What version are you running?