I will ask about the naming of images and files in JCE.
We Japanese usually use Japanese for these filenames. In other words, Japanese (kanji) is 2 byte code.
In JCE 's document, for example' Image Manager Extended / Uploading an Image ', Japanese is not allowed.
'The name can only contain the characters az, AZ, 0-9, period (.), Underscore (_) and dash (-). Spaces
are converted to underscores, all other characters are removed.
However, in fact, uploading is possible even if these file names are still in Japanese (kanji).
(See attached image)
This is the same not only for images but also for document names.
This phenomenon is useful for users, but for administrators, it is a serious problem when migrating the system.
Does handling of file names defined in Japanese do not match your document?