Could you please confirm the version of Lightroom that you are using?
If it is version 6/CC, go to Lightroom Preferences > Performance > uncheck "use graphics processor" > relaunch Lightroom and then, check.
Unfortunately it did not help. Maybe there are some options for what?
even if the treatment goes on export program stops working and does not copy the effects
Could this be due to a lack of memory? Although 40GB memory ...
Thanks for the update.
Were you successfully able to uncheck graphics processor option?
Would also suggest you to go to Lightroom Preferences > File Handling > increase the camera raw cache to 80-90 GB and then, check.
Does not help((((
Would suggest you to follow the below instructions :
- Quit Lightroom
- Go to the location of Lightroom Catalog which is Pictures\Lightroom folder by default
- Rename Lightroom Catalog Previews.lrdata to Lightroom Catalog Previews-old.lrdata
- Launch Lightroom and check again.
This would recreate the previews for the images in catalog.
Also, make sure your program is updated to version 6.3 : Keeping Lightroom Up-to-Date
also does not work
Create a new catalog by going to File menu > New Catalog > import a few images to test if it works fine.
If it does, go to File > Import from another Catalog> choose your previous main catalog and test.