can't connect, get `AttributeError: 'RemoteObject' object has no attribute 'ramp_up_time'`

I'm getting an uncaught exception when trying to connect:

Traceback (most recent call last):
  File "odrivetool_UI.py", line 291, in odrive_connected
    self.scan_all_config()
  File "odrivetool_UI.py", line 743, in scan_all_config
    self.scan_axis_config()
  File "odrivetool_UI.py", line 865, in scan_axis_config
    self.scan_axis0_config()
  File "odrivetool_UI.py", line 902, in scan_axis0_config
AttributeError: 'RemoteObject' object has no attribute 'ramp_up_time'

I'm on a fresh clone of ui_odrivetool (6330e97f) and a fresh odrive install of version 0.4.11.

I'll work on trying to fix it myself too and report back here..