I just started using Lightroom 6 on my Mac Pro. In Slideshow, I've set the aspect ratio to 16:9 and clicked "zoom to fill frame". When I play a slideshow in Preview, it looks fine. However, when I click Play for full screen, the 16:9 aspect ratio disappears and I end up with far too much black border and my identity plate vanishes into the left black space. Then when I escape, the 16:9 aspect ratio is still checked as it was before I went to full screen. My previous version of Lightroom would play 16:9 in full screen. Does anyone have a suggestion?
Yep, me too.