binary dir file will not update live plot

[jhgorse]

Environment and steps to reproduce:

• Mac OS X 10.11.4
• version 2.0.6 and master (2.0.x ~9ish)
• follow steps in video EXCEPT using binary dir file mode instead of ASCII

Aberrent behavior:
Plots do not update.

Other things tried:

• there is no way to change the update rate
• update on file change also does not work