An issue with digiKam 7.4.0 build date 05/11/2021. The raw nef files (from a Nikon d810) won’t show a preview image, although the thumbnails are visible. Instead there’s a “failed to load image” message in the preview pane. The last build that does not show this issue with new files is the build 15/08/2021. I am on Mac with OSX 11.5.1. JPG, DNG, TIFF, MOV and MP4 do not show this issue. Did anybody observed this?
Seems to be same issue. Dont know how to fix it
https://bugs.kde.org/show_bug.cgi?id=441698
Thanks for the information about the bug report. To add my previous post, on a Mac with OSX 10.13.6, the latest digikam builds preview .nef files as expected.