Hi there. Unfortunately due to SMBv1 being deprecated, there may be a number of systems Slitheris won't be able to pull the Edition without full admin access. However, it shouldn't be telling you the wrong Edition. Is that what it's doing or is it just not showing Edition for a lot of Win10 machines?
The Windows version number, as 10.0.17763.615, does require admin access and we don't yet have this in Slitheris. However, we do have another app called NEWT Pro that can show the full Edition and Version #, as long as you have access to the remote PC's ADMIN$ share. At some point we plan to combine both software into one single app, but for right now they're separate.
I hope that helps!