New update LrC does not support GoPro videos when you do slideshow export video.

[alexanderp68213212]

With new update Lightroom Classic can not export slideshow which contains GoPro videos.   I can see that videos in the library mode - no problem. As soon as it slideshow and start export it is stop on that particular files with GoPro videos  and do nothing fo hours. As soon as I removeв particular GoPro file it continue to work with others videos until reach another GoPro7 files and stop again , Seems I need to exclude all that videos or do slideshow in another soft.  With previous old version of Lightroom Classic was no problem and I do the samу slideshow with these particular files, that new version does not support. 

[Ian Lyons]

Video support in Slideshow module was updated in 9.3. If you have lost functionaility that was previously available, then there is an issue that the engineering team needs to be made aware of. However, to rule out a corrupt preference file, please try resetting the Lightroom Preference file as described in Method 1 at https://helpx.adobe.com/lightroom/help/setting-preferences-lightroom.html

If above does not resolve the issue for you, then please submit a but report describing the issue at:

https://feedback.photoshop.com/photoshop_family/categories/photoshop_family_photoshop_lightroom?

Remember to provide details of your Operating System, the camera model , etc.