Attachments won't send along with gmail

[AC Question]

Sudden onset since automatic "update" around 10/30/16. Attachments placed on messages disappear when I hit send. Using Android on Lenovo TAB2A730F with wifi on home Verizon router if that matters. Not large files at all. Doesnt matter whether file came from download, gallery, drive or screenshot. Also tested with a previously saved draft that had photo attachments, and the same thing happens. So it's not about newly attaching files, it's about files going through with the text of the Gmail. Please do not tell me to delete & readd my account. That's not going to happen.