for a component where an image has a default value, the image is not displayed in the frontend and the name of the default image is displayed instead.
You can check the corresponding bug report here:
Now when I select an image, everything is fine and the image loads properly in the frontend.
Now when I reload the page in the frontend, I see the name of the default image pop up for a split second before the selected image is loaded.
Will try to confirm this on a clean install later.