7.0.1\gui\wxpython\mapwin\buffered.py", line 484, in OnPaint

dc = wx.BufferedPaintDC(self, self._buffer)
  File "C:\Program Files (x86)\GRASS GIS 7.0.1\Python27\lib
\site-packages\wx-2.8-msw-unicode\wx\_gdi.py", line 4990, in
__init__

_gdi_.BufferedPaintDC_swiginit(self,_gdi_.new_BufferedPaintD
C(*args, **kwargs))
wx._core
.
PyAssertionError
:
C++ assertion "wxAssertFailure" failed at
..\..\src\msw\dcmemory.cpp(118) in wxMemoryDC::DoSelect():
Couldn't select a bitmap into wxMemoryDC