I upgraded (?) to HIGH SIERRA when it was first released and ran into several quirks (as previously mentioned in other postings).

So, I erased my drive and reinstalled SIERRA. I will wait a few months until there are a few updates on HIGH SIERRA before I try again . . . or until SIERRA no longer works . . . whichever comes first.

If I'm remembering correctly, you ran into a keychain problem that was along the lines of mine.

Mine was NOT corrected by the 10.13.2 update.

That is correct. I couldn't get Onyx or Pathfinder to work with High Sierra, too.

Nuked the drive, reinstalled SIERRA (10.12) . . . Keychain, Onyx, and Pathfinder all work as expected now.

If you haven't seen my descriptive post, I've established that my keychain issue results from my login and keychain passwords differing.

I posed a question for you here