Thumbnail filename issue

Problem/Motivation

The existing view is not displaying the thumbnail image for the YouTube video. It not is shown in the code with the error: "Could not load image". The image is not in the file location on the server. /sites/default/files/youtube/dalEL6ODaBM.jpg

In a review of the files on the server, I can see that the file name has been written in all lowercase as "dalEL6ODaBM.jpg".

Steps to reproduce

Use an existing content type to add a new video to an existing view.

Note that we do have the Filename Transliteration module installed.

Please advise.