runsnake fails in ubuntu with error in squaremap

When I start runsnake with

$ runsnake test.profile

the window opens, but with no graphics and no source code (only the list of calls, etc. is present). On the console, I see the following error message:

11:18:17: Debug: Adding duplicate image handler for 'PNG file'
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/wx/core.py", line 3282, in <lambda>
    lambda event: event.callable(*event.args, **event.kw) )
  File "/usr/lib/python3/dist-packages/runsnakerun/runsnake.py", line 701, in load
    self.SetModel(self.loader)
  File "/usr/lib/python3/dist-packages/runsnakerun/runsnake.py", line 738, in SetModel
    self.squareMap.SetModel(tree, self.adapter)
  File "/usr/lib/python3/dist-packages/squaremap/squaremap.py", line 221, in SetModel
    self.UpdateDrawing()
  File "/usr/lib/python3/dist-packages/squaremap/squaremap.py", line 247, in UpdateDrawing
    self.Draw(dc)
  File "/usr/lib/python3/dist-packages/squaremap/squaremap.py", line 257, in Draw
    font = self.FontForLabels(dc)
  File "/usr/lib/python3/dist-packages/squaremap/squaremap.py", line 267, in FontForLabels
    font.SetPointSize(scale * font.GetPointSize())
TypeError: Font.SetPointSize(): argument 1 has unexpected type 'float'

I installed runsnake using

sudo apt-get install runsnake

The versions of the dependencies are, according to pip list:

RunSnakeRun            2.0.5
SquareMap              1.0.5
wxPython               4.0.7

My system is

PRETTY_NAME="Ubuntu 22.04.1 LTS"
NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.1 LTS (Jammy Jellyfish)"

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