Unleached Firmware Assistance

[ryan_curtis]

I was attempting to perform some long needed firmware updates.  When I log in to my unleashed environment and go the upgrade area it is stuck on loading (see picture.)

I have rebooted all three units to the same result.    

I also have attempted to do this from the CLI on the master using apfw_upgrade tftp://IP Address/name of firmware file

It downloads the image from the TFTP server but it comes back with

"Verifying image failed        This does not seem to be a valid upgrade image.
        Please try another file."

I have tried multiple firmware versions, all should work according to release notes.

Any ideas?