I have no clue why this happens. I guess we have to wait for a fix 😉
Upload file using Redactor?
Does Redactor allow for file uploading? There's a button for it, but when I tried to upload a file the upload box disappears and the file does not appear.
I found it but the upload file dialogue box is confusing. It says the file name is optional, but if I don't enter a name then it appears in the post as blank.