I am trying to set up a slide show in Lightroom CC and can not get the slideshow to run. I can also not upload any music to my slideshow. I have set up slide shows before in the previous version of Lightroom - any idea why this is not working for me now? I have had an error message about a defunct sequencer - not sure if this is related to my problems?
What exact version of LR CC are you using?
Knowing your OS as well as the type of your graphic card may be helpful too.
Simply post the Systeminfo from LR's help menu.
I am having the exact same problem with shows not running. I can set them up (non-saved shows), but the screen goes dark when I touch either preview or play. I am using Lightroom CC, 2015.3
I have an iMac, OS-X (version 10.11.2), Graphics NVIDIA GeForce GT 755M 1024 MB
For whatever reason, I am no longer having this problem, at least not tonight!
The only thing I am doing differently is that I "signed in" online. NO other manipulation of settings that I tried worked. But, signing in, and for the first time in my case, and now I have slideshow!