I tried out the op CLI the other day (for the first time since probably 0.1), and after starting the sign-in process, it just hung. It displayed the token / eval string, but never returned to a prompt. Then the system got slower and slower...I tried killing the process, and even with -9 and root privileges it wouldn't die, but just remained in the ps list (as "(op)", which at one point I probably knew what that meant but no longer...)
Eventually, it got to the point where other apps were freezing up, or other terminal windows. I rebooted, and the system gave me some other crazy errors probably not 1P related (macOS installer errors). After several reboots and such, it eventually came back into the OS, and I upgraded from 10.13.3 to 10.13.4.
I still get the same error, but it hasn't been quite the complete system lockup as I saw before...possibly because I'm just rebooting as soon as it's clear the app has hung.
I tried it at home (where I think I'm using 10.13.3) and it worked just fine. So I considered that maybe it was a MFA issue with my work account...tried signing in with just my family account (no MFA there) and again, hung.
I haven't seen anyone else report this problem, but it's possible it was addressed a while back and has just resurfaced (and I didn't go far enough back int the forum).
(PS - didn't occur to me until an hour later --- the hanging is occurring on a Touch-bar equipped MBP, while the machine at home, where it works, is a much older 15").
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