By browsing a folder, get error "URL cannot be listed file:///home/<folder>

Alternatively : by opening a picture with Gwenview from right-click in Dolphin in a folder containing several pictures, the picture is correctly displayed. But I cannot go neither to the next nor to the preview picture. For that it is necessary to close Gwenview, select preview/next photo in Dolphin, then opening it.

Reproducible: Always

Steps to Reproduce:
1.Open Gwenview
2.Select a place
3.

Actual Results:  
"URL cannot be listed file:///home/<folder>

Expected Results:  
The first picture in the folder should be displayed

Note that opening a single file instead of a folder/place fails too : The files list is not shown