Thanks for the reply. I have MacID loaded on my late 2011 MBP and it is very consistent in providing Touch ID (via the phone) for admin needs, along with logging in and out etc. Hopefully, Apple can get more of the bugs removed with the next few updates. I hope people are reporting bugs.Sometimes it is. It's very inconsistent and unpredictable when you're going to have to put your password in or when a fingerprint will suffice.
TouchID integration into the OS is very half baked at this point. Hope they fix it soon.