Lightroom CC Classic Slideshow Export Video Broken

@28091742  You’ve posted to an ancient thread. It is highly unlikely that the issue described in this thread, though not impossible, is the same one you are currently experiencing. Rather than resurrect an old thread that is seemingly similar, you are better off posting to a new thread with fresh, complete information, including system information, a complete description of the problem, and step-by-step instructions for reproduction. 

If the issue is the same, we will merge you back into the appropriate location. 

This thread will be locked. 

Thank you!

Thanks for finding a workaround, really good of you to post:-)

IMHO Adobe still really need to fix this, having a work around is one thing, but its not a fix

Hi,

Sorry to hear that this problem still exists for you.
We would like to collect some Diagnostic files from your end.

1. Quit Lightroom.
2. Create a file name it config.lua. Paste the following content : 

loggers["MediaCore"] = {
  logLevel = 'trace',
  action = 'logfile',
}

loggers["VideoSequencing"] = {
  logLevel = 'trace',
  action = 'logfile',
}

loggers["MediaCoreController"] = {
  logLevel = 'trace',
  action = 'logfile',
}

loggers["SlideshowPlayer"] = {
  logLevel = 'trace',
  action = 'logfile',
}

loggers["SlideshowPlaylist"] = {
  logLevel = 'trace',
  action = 'logfile',
}
​

• Paste the config.lua file in the following location : HOMEDIR/Library/Application Support/Adobe/Lightroom
• Launch Lightroom and try to create and play slideshow.
• Quit Lightroom.
• Zip and Share the folder with us which should have been created in the following location :HOMEDIR/Documents/LrClassicLogs

Thanks !

I was having a similar issue with LR freezing when exporting a slideshow at 1080p.  I posted the following in another thread, but perhaps it will help others who find this thread:

I have found two ways to WORKAROUND the problem of LR freezing when exporting a slideshow to video at 1080p.  Both of these methods work on my Windows 10 system, but there is no guarantee they will work on other systems.  Note that my slideshow has both landscape and portrait images.

Method 1)  Assuming all of the images for the slideshow are in a collection, export the entire collection at full-size in either JPG or TIFF format, sRGB.  When doing the export, rename the output files using Sequence-Filename.  Next, import these new files back into LR, create a collection of these files and make the slideshow using these files.  Exporting as video at 1080p should work fine.  (The order of the images will match the original slideshow because of using Sequence-Filename when creating the new images.)

Method 2) Assuming all of the images for the slideshow are in a collection, export the collection as a new catalog.  Select the collection, then File > Export As Catalog, checking Export Negative files and Include Available Previews.  Open this new catalog and create the slideshow.  Exporting as video at 1080p should work fine.

On my system, LR crashed intermittently when adding an .MP4 music file to the slideshow.  In Preferences > Performance, turning off Use Graphics Processor allowed me to add the music without the crash.  After the music was added, I could re-enable Use Graphics Processor, but I'm not sure it made anything go faster.  (That's just my system which is a few years old.)

John

Brilliant Simon!  My failing example had ONLY portrait images, and after I did that I successfully exported a much larger slideshow video (not a toy example), with imaging having a wide variety of aspect ratios.  I think you nailed it.  I wish I could tag this thread with #BIUG or something that would alert Adobe to a problem that they should fix in the nest release. Thanks for posting the answer Simon. - Jim

The slide show is a toy example: 7 iPhone images, no music, intro and end slides.  Default video format: 1080. - Jim