PS:
As a troubleshooting tool ~ you should always have 'wired USB' keyboard ~ so long as your Mac has that type of input port.
{...I've just spent 28 minutes in the backwoods of ASC discussions trying to post a copy of error (then visible) in this thread
to an area where community hosts could see the issue; after awhile I get logged out, but that's not the issue... Problem is
the posts have been reflecting incorrect Time and Date. Then the system logs the user out. ~ Checked all settings, and they
are spot-on; issue's in Site. First reply above said 11 Dec 2018, date & 3:13AM, time. -- Incorrect. Been doing this two days...}
Good luck & happy computing! 🎯