No background image since newest update

Since the newest update my background images for rows are not shown any longer.

In the pagebuilder backend there is a brokenimage icon whenever I try to set an image.

If I check the sourcecode it tries to link to the correct image path, BUT with “?id=15785” added to it, and therefor I only get a message “Source file not found!” if I open it in a new tab. If I delete the parameter the image shows fine.