Lightroom 6.0 slideshow - images rendered as swapped blocks

This has been fixed in Lightroom 6.2, which is available today. (Actually, it turns out this was already fixed in Lightroom 6.1.1. Yeesh. I apologize for not updating this thread earlier.)

Thanks,
Ben

That's a common video card driver issue.
Make sure you updated your video card driver from the GPU maker's website.

I have the same problem after upgrading from 5.6 to 6.0 - my graphics card AMD Radeon HD 7450 has the latest drivers. Never had a problem on 5.6, I've also unticked the option in Lightroom to use the graphics card for performance.

Unfortunately I cannot downgrade the lightroom catalog back to 5.6 - does anybody have ideas to resolve this?

Looks like some crop-rotation is related to this bug - changing rotation - seems to fix it, or exporting picture and than importing an edited version back to slideshow seems to help, as a temporary workaround...

I tried rotating them but it didn't fix it for me, deleting and re-importing them fixed it for one of the images but the problem just occurred for another one. Happens on about 3 images out of 40. Since 2/3 of them are virtual copies with adjustments it is really cumbersome to delete and re-import and redo virtual copies, redo slideshow order etc.

Would it be possible that any of you upload some test image files so that I could figure out that problem?

Hi, Please, see link below - contains 3 files and slideshow generated from them.
Let me know if anything else is needed

https://www.dropbox.com/sh/cfiagksklc...

Thank you so much! I have downloaded those tiff files. I will keep you posted on the progress.

same issue, same optical result of corrupted slides in a slideshow. I also do have a Radeon graphics card (5700). This one I downgraded the driver to make use of the GPU (which otherwise was not identified by Lightroom.

I also have the same issue and am using the Radeon 5700 and a dual screen setup.

Ran into the same issue today after upgrading to LR6. Deleting the images and re-importing them seems to fix it sometimes but not others. It only seems to get fixed when the "play" option recreates the slide/file portion that is affected, but on a couple of occasions it corrupted another image too. Very frustrating. Finally had to delete one troublesome image that I couldn't get rectified.

Issue is shown much more often when I create a 1080p slideshow compared with the same slideshow rendered as 720p.

Same issue on radeon hd 7900 and dual screen conf..

Hi All,

Sorry for the trouble! I am working with Yuhong on trying to figure this out. Unfortunately, we have not yet been able to reproduce this problem internally. Here are some things you could do to help.

For anyone experiencing this problem, please tell us:
1. What operating system are you using?
2. What video card are you using?
3. What is the specific version number of your currently installed video card driver?

And for anyone who really wants to help us figure this out, please try the following:
1. Go to the folder C:\Users\\AppData\Local\Adobe\Lightroom\Caches\”.
2. Once at that location, delete the folder “velo”, if it exists.
3. Launch Lightroom and export a slideshow as a 1080 video, such that the resulting video has the problem described in this thread.
4. Copy the video to Dropbox, or a similar service, and send me a download link.
5. At the location described in step 1, there should now be a newly created “velo” folder. Also copy this folder to Dropbox, or a similar service, and send me a download link.

If you prefer not to use Dropbox, I can send you instructions for connecting directly to an Adobe FTP server, although using Dropbox is generally easier.

Thanks,
Ben

Would it be possible that you copy the "velo" folder during the process of export (The export progress bar is moving) ?

The copied "velo" folder should contains the "slideshow_export.velo" file and other temporary PNG files. (see the attached image).

It will be very helpful to us to figure out this problem.