Created attachment 143671 [details]
How the clicked files look when are wrongly listed under the 4th folder after the one you actually clicked to list.

SUMMARY
***
When you click to expand any folder, the expande view opens, listing the files, but - the bug is -  the list of files appears under a different folder below,  the fourth (4th) after the folder you're clicking to expand. Instead of the list appearing below the proper folder.

It looks like the files listed belong to the fourth (4th) folder under the one you're trying to list, and when you click on the fourth (4th), folder wrongly listing files, the actual list of files of that folder appears as expected.


STEPS TO REPRODUCE
1. Burger menu → Configure → Configure Dolphin → View Modes → Details → Folders: → tick checkbox "Expandable"
2. Go to a folder, click the arrow


OBSERVED RESULT
You see the files of the folder appear listed under the fourth (4th), folder under the folder you're actually trying to list.

EXPECTED RESULT
After you click the arrow, you should see the files of the folder listed just under the folder you just clicked.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION