I've installed Lightroom 6.1.1 and just tried web galleries finding two problems. Lightroom hangs when I try to export a gallery and I am not able to add more than 12 images to the Grid Gallery. Adding more images to the Classic gallery seems to work fine. I tried uninstalling, downloaded lightroom again, and reinstalled but the problem persists. I don't know if it matters but I did initially install lightroom as a trial and later entered the serial number. I appreciate any suggestions.
I can't get more than 7 images to display in any of Layout styles except Classic. Classic has no problem no matter how many images I select.