Leginon

We have a Krios instrument setup in a mixed Linux/Windows environment running Leginon 2.2. We create a new "EM" node on the Krios system, and click the button to retrieve magnifications from the instrument. The system appears to poll the instrument and successfully store the data in the database. However the Leginon window that is running the EM node (Leginon "client" on Windows) does not update correctly; all the controls are grayed-out and if I change the drop-down selection to one of the cameras rather than the TEM and then go back to the TEM, the python console window outputs errors. Below this is the console output:

(importing fake libcv)
{'tcpport': 55555}
Traceback (most recent call last):
  File "c:\Python25\Lib\site-packages\leginon\gui\wx\Instrument.py", line 1072,
in onChoice
    self.szmain.AddGrowableRow(1)
  File "C:\Python25\Lib\site-packages\wx-2.9.1-msw\wx\_core.py", line 14925, in
AddGrowableRow
    return _core_.FlexGridSizer_AddGrowableRow(*args, **kwargs)
wx._core.PyAssertionError: C++ assertion "!IsRowGrowable( idx )" failed at ..\..
\src\common\sizer.cpp(1929) in wxFlexGridSizer::AddGrowableRow(): AddGrowableRow
() called for growable row

I found this post - http://emg.nysbc.org/boards/6/topics/1363?r=1364 - which seemed to describe our issue. Per that thread, I did this:

C:\Python25>python.exe
Python 2.5.4 (r254:67916, Dec 23 2008, 15:10:54) [MSC v.1310 32 bit (Intel)] on win32 
Type "help", "copyright", "credits" or "license" for more information.
>>> from leginon import leginondata
>>> results = leginondata.MagnificationsData().query(results=1)
>>> mags = results[0]
>>> print mags['instrument']
{name: Tecnai, hostname: titan52331990, cs: 0.0027, pixelmax: None}
>>> print mags['instrument']['hostname'],mags['instrument']['name']
titan52331990 Tecnai
>>> print results
[{instrument: DataReference[class: InstrumentData, dmid: (('titan52331990', 4915
2), 7), dbid: 6, referent: weak], magnifications: [29, 52, 82, 135, 175, 220, 27
5, 360, 470, 580, 740, 940, 1200, 1550, 1950, 2500, 2250, 3600, 4800, 6500, 8700
, 11500, 15000, 19500, 26000, 32000, 41000, 53000, 64000, 81000, 105000, 130000,
 165000, 215000, 270000, 350000, 440000, 560000, 710000, 910000, 1150000]}]
>>>

So I'm pretty sure our instruments.cfg file is OK.

Anyway, my question is this: Is this a problem I need to fix or just a bug? That is to say, if the magnifications are in the database, does it matter that the GUI gets pooched? Additional information available upon request; just remember that I'm the computer guy and don't know much at all about electron microscopy. :) Thanks in advance.