khal error message

I keep getting this when I try to open the interactive UI:

Traceback (most recent call last):
  File "/usr/local/Cellar/khal/0.13.0/libexec/lib/python3.14/site-packages/khal/ui/__init__.py", line 1494, in start_pane
    loop.run()
    ~~~~~~~~^^
  File "/usr/local/Cellar/khal/0.13.0/libexec/lib/python3.14/site-packages/urwid/event_loop/main_loop.py", line 337, in run
    self._run()
    ~~~~~~~~~^^
  File "/usr/local/Cellar/khal/0.13.0/libexec/lib/python3.14/site-packages/urwid/event_loop/main_loop.py", line 439, in _run
    self.event_loop.run()
    ~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/Cellar/khal/0.13.0/libexec/lib/python3.14/site-packages/urwid/event_loop/select_loop.py", line 182, in run
    self._loop()
    ~~~~~~~~~~^^
  File "/usr/local/Cellar/khal/0.13.0/libexec/lib/python3.14/site-packages/urwid/event_loop/select_loop.py", line 224, in _loop
    alarm_callback()
    ~~~~~~~~~~~~~~^^
  File "/usr/local/Cellar/khal/0.13.0/libexec/lib/python3.14/site-packages/urwid/event_loop/main_loop.py", line 650, in entering_idle
    self.draw_screen()
    ~~~~~~~~~~~~~~~~^^
  File "/usr/local/Cellar/khal/0.13.0/libexec/lib/python3.14/site-packages/urwid/event_loop/main_loop.py", line 664, in draw_screen
    self.screen_size = self.screen.get_cols_rows()
                       ~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/Cellar/khal/0.13.0/libexec/lib/python3.14/site-packages/urwid/display/_posix_raw_display.py", line 406, in get_cols_rows
    buf = fcntl.ioctl(self._term_output_file.fileno(), termios.TIOCGWINSZ, b" " * 4)
SystemError: buffer overflow

Anyone else getting this?

Reproduce the failure by opening khal's interactive UI, then start at khal/ui/init.py around start_pane and follow the traceback into urwid's display code. Confirm the terminal conditions that trigger SystemError: buffer overflow and add a regression test or documented verification that the UI opens without this error.