Do not work fully with 188.8.131.52.Browser Info Environment
Now I'm using C5 v184.108.40.206 and it deletes only the default Login Backgrounds and shows only the default "Brick Wall" background and not the picture I set up a .jpg image. If a look into the HTML source code of the Login Page, I can see it tooks this "brick wall" picture out of the C5 v220.127.116.11 update folder.
What can I do?
Have you tried clearing the image and selecting it again? If not, I would try that first. The add-on may be attempting to use an image that does not exist anymore or has a different file ID. If the image isn't valid or not found, no image will display.
I choose the pictures over the C5 filemanager, how/why should this picture not exist?
The picture thumbnail gets shown in your add-on option but not as background image.
What is the website address of your login page?
The image path for Time_Map_02.png is 404 not found.
<img src="file_storage/9314/7092/0982/Time_Map_02.png" style="position: absolute; display: none; margin: 0px; padding: 0px; border: none; width: auto; height: auto; max-height: none; max-width: none; z-index: -999999;">
Is this image located in a "file storage location"?
If so, I don't have experience using file storage locations, but this may be a configuration issue or related. I recommend using an image not in a file storage location and see if that works.
I've checkt the path of the file storage location and I forgot "/" infront.
But only your add-on had a problem with it.