I really hope you have maybe a solution for me...since I use Lightroom 5 under MAC OS (Before I used a PC), my computer doesn't export photo collages reliably. This means sometimes he exports them but most of the time I have to export the same photo collage as a file twice before it is saved correctly.
Have you ever heard of such a problem or maybe have an answer for me?
Thank you very much...
Please update your Lightroom to latest update available for Lightroom 5, also you reset the Lightroom preferences to make sure all the settings are correct.