It probably means that you'll need to update.
Indeed, 17.0.0 introduced a certain save issue, especially if you used Haku33, TegraExplorer, EmmcHaccGen or ChoiDujour in order to "clean" your console. Solution to that is to boot Atmosphere 1.6.1+...
I typically try not to go for the latest as it's often times not necessary. And there were some reports last time I checked (a few months ago) that the 1.7.X series had some issues. The website I got the XCI from claimed that 1.6.1.0 would be...
I'm on 16.1.0, Atmo 1.6.1, sigpatches from here, and not sure about sys-patch. I'm trying to install via Tinfoil. It just ends up with that blank buffering logo on the main page, and running it just gives you the standard Nintendo corrupted...