Sorry for the mega-delay. I think I didn’t explain step 2 well enough. I said:
– Use FTP to delete any remaining copies of the various sizes of the image. (This, in my opinion, is where the problem lies.)
and you replied:
2. Deleted 1 version of an image that was on FTP site (concept2-620x 180-1.png). It was the only one I could find.
I’ll try to explain a little better.
What you need to do is use an ftp client such as Filezilla and login to your site. You may need some help from your hosting company to do this. You will need to use a password that they will give you (or you may be able to find it via your control panel). Alternatively, you may have a hosting deal that gives you some sort of file manager, in which case you can use that.
You then need to navigate to the htdocs > wp-content > uploads folder. Depending on your settings, you may find all your images there, or you may find them in subfolders by date. Your media library edit screen will tell you the File URL: which will give you a clue.
See if you can find the image that should have been completely deleted there. You may see a subset of the following:
my-image-150x150.jpg
[email protected]
my-image-270x250.jpg
[email protected]
my-image-300x300.jpg
[email protected]
my-image-1024x500.jpg
[email protected]
my-image.jpg
Some of these files may not have been deleted properly and you will need to delete them manually.
Warnings:
– Only delete an image manually if you have deleted it previously through the WordPress screens. Otherwise your database and images will get out of sync.
– Check that you have deleted all the occurrences of the image in the media library and all the occurrences in the folders via FTP.
Once you have fully eliminated the files, you should be able to re-upload with Customizr activated — with retina switched on — and be OK.
Another approach entirely would be to use the Force regenerate thumbnails plugin, rather than the Regenerate thumbnails plugin. According to the author, this deletes the old images that are still hanging around after a delete. Personally, I prefer to do my own deleting, but this may be an approach you are comfortable with.
