Hmm…
I would be happy to troubleshoot this with you if you have the problem again. But I am unable to re-create it on any installation of the plugin that I have, so it is hard for me to determine what the problem is.
For example, whenever I upload an image I see the image in the preview and I see the delete button and when I look at the site I see the image.
And whenever I have deleted the image I uploaded, I see no image in the preview and I no longer see the delete button and when I look at the site I see an empty image outline.
It sounds like you are saying that when you UPLOAD an image, you see no image in the preview and don’t see the delete button and when you look at the site you see an empty image outline.
My guess is that the image did not upload correctly. I would suggest that you try to re-upload the image (by clicking the Upload Image button).
If you do try that I would be grateful if you let me know what the results are.
Best of luck,
Stacy