Image Upload: URL to File differs strongly between test and

Hello there,

as it seems, my code I use to upload images across multiple instances of sitefinity has a different behavior between environments.

My code does run smoothly on the staging system and creates the images as I like. But when executing the very same code on the base of very same pages (except environments), the url to File of the image is hugely different. Instead of

http://s049ec12/Instance/images/default-source/catalog-header/pricelists_sub_pp.png

The prod environment images get the following url (AE being the instance):

http://https/AE/images/default-source/catalog-header/pricelists_sub_pp.png

How can this be? The https should be the server / domain and http should be https. Why does it act so?

This is the code to upload images:

        private void UploadImagesToHeaderAlbum(string imageTitle, string imageFileName, string imageExtension, string albumTitle, Stream imageStream)
        {
            LibrariesManager libManager = LibrariesManager.GetManager();
            Image image = libManager.GetImages().Where(i => i.Title == imageTitle).FirstOrDefault();

            if (image == null)
            {
                image = libManager.CreateImage();

                Album album = libManager.GetAlbums().Where(i => i.Title == albumTitle).SingleOrDefault();
                image.Parent = album;

                image.Title = imageTitle;
                image.MediaFileUrlName = Regex.Replace(imageFileName.ToLower(), @"[^\w\-\!\$\'\(\)\=\@\d_]+", "-");
                image.UrlName = Regex.Replace(imageTitle.ToLower(), @"[^\w\-\!\$\'\(\)\=\@\d_]+", "-");
                image.DateCreated = DateTime.UtcNow;
                image.LastModified = DateTime.UtcNow;
                image.PublicationDate = DateTime.UtcNow;

                libManager.Upload(image, imageStream, imageExtension);
                libManager.RecompileItemUrls(image);
                libManager.Lifecycle.Publish(image);
                libManager.SaveChanges();
            }
        }

EDIT: I just noticed, that this happens with all Images I also manually upload?!