Lightroom Classic - Diashow export video freeze problem

[Tiage240571]

Hi  Lightroom folks ....

I struggle with some "New" issue for some while . For the time being I had NO problem at all to export my Diashow as a mp4 Video file. This years vacation though makes huges problems. Like mentioned I had different ratio jpgs, small MOV and MP4 video szenes all in the Diashow and faced no issue. Now the export process stops and freezes. The Lightroom frontend thereby is still available and reacting on everything I do. Only the export process indicator top left corner freezes and CPU performance degreases significally. I already tried to run over night but no chance. What I really need to do (which I did not need former time) is to remove all videos szenes. This is a nightmare ! The complete documentation of the bike vacation with only photos ! 

I also switched off the GPU support , Exported as new catalog etc...  actually now I do not know what else I can do. 

Any idea since when this is an issue ? 

Any idea how to log the process to actually SEE which photo / video makes issues. 

Best Regards Timo 

[GoldingD]

Please post your System Information as Lightroom Classic (LrC) reports it. In LrC click on Help, then System Info, then Copy. Paste that information into a reply. Please present all information from first line down to and including Plug-in Info. Info after Plug-in info can be cut out as that is just so much dead space to us non-Techs and it takes up vast amounts of scroll space making the reply less readable and less likely that others will bother with your post.

[GoldingD]

Please post in a reply your Export Screen