Export pictures from Kphotoalbum version 4.1.1 to kim file (either chosing option 1 - copy the pictures into the kim file or option 3 - automatically copy pictures next to kim file).
Importing kim into Kphotoalbum version 4.5.
Chose picture path to be subfolder of root of kphotoalbum collection (home/me/root-of-kphotoalbum-collection/2014/new_pictures)
Checking thumbnails - showing standard thumbnail, because path of the pictures is expected to be in the root instead of the appropriate subfolder.
Steps to Reproduce:
1. Export picture of kphotoalbum 4.1.1 into kim
2. Import kim into kphotoalbum 4.5
3. Chose subfolder of root of kphotoalbum pictures
4. Check if path of picture is right (subfolder)
A standard thumbnail is shown, because the path of the picture is wrong
Displaying the right thumbnail
I know, that the creation of thumbnails is handled differently in version 4.5 than 4.1.1
But this is not the problem.
Open index.xml in an editor (gedit).
Search for file="DSC and replace those strings with file="2014/new_pictures/DSC
This seems to be the same as Bug 334393 from 4.4 https://bugs.kde.org/show_bug.cgi?id=334393
I can confirm the malfunction. KPA 4.5 compiled from source with openSuSE 13.1.
*** This bug has been marked as a duplicate of bug 334393 ***