DFU-util 0.9 fails to update firmware on psense V1.1 @ 2017

[JimM]

trying to update older psense firmware fails (on Mac): results in terminal window:

dfu-util 0.9

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2016 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/

Match vendor ID from file: 04d8
Match product ID from file: f011
Opening DFU capable USB device...
ID 04d8:f011
Run-time device DFU version 0100
Claiming USB DFU Runtime Interface...
dfu-util: Cannot set alt interface zero

[James Tavares]

Me, too! I actually have a pysense v1.0. Trying to DFU firmware v0.0.8 on MacOS 10.14, and am getting the same error ("dfu-util: Cannot set alt interface zero")