Brltty question

[Tom Masterson]

I seem to have two copies of brltty running.  From ps -aux command I get:
root      3050  0.2  0.1 333892  7188 ?        D<sl 11:11   0:01 /sbin/brltty -P /run/brltty.pid
root      8689  2.1  0.1 353900  5640 ?        S<sl 11:18   0:02 /sbin/brltty -n -p /var/run/brltty.pid

This seems to be causing great confusion for the OS and causing problems 
with my usb ports.  If I try to kill the one with the -n -p options it 
gets restarted.

Can anyone tell me why this is happening and what I can do about it?

Tom