Save the file from JS Backup on your SD card, or computer - use something other than Cloud like google or one drive for backup.... you can then restore from whatever cloud you saved the file to. Or your own computer for that matter - as long as yo can access the backup that;s created, you can restore it via the app.
Forrest, thanks for reaching out to us and I know how important it is to back up all your important data. Let's work together on getting this issue resolved for you, are you getting an error message when you try to back up this file? Are these messages from Verizon Messages or the original Messages application?
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