V6.17 Won't Convert Kindle AZW3 File

In 3/23 I posted about this, that Calibre 6.12 wouldn't convert Kindle ebook ebok file. Suggested I purchase a Kindle so I could download AZW3 file for transfer to PC via USB. Worked great, Calibre could convert that file.

I just now tried to convert the same type of file and a message pops up stating this file has DRM and cannot be converted, and file won't covnert.

Am I once again out of luck?

Danny Lusk