QR code save not working in Electrum 1.8.1 portable

[QRbitcoin]

Electrum 1.8.1 portable can generate QR codes for contact addresses, but when Save is clicked, nothing happens. It should be saved as qrcode.bmp. This has worked fine in Electrum 1.7.

[1714957490]

1714957490

[1714957490]

1714957490

[1714957490]

1714957490

[1714957490]

1714957490

[btcven]

This is the error it shows when hitting the Save button in the QR code window.

Code:

$ cd /Applications/Electrum.app/Contents/MacOS
$ ./electrum
Traceback (most recent call last):
  File "/Applications/Electrum.app/Contents/Resources/lib/python2.7/gui/gui_classic.py", line 1542, in print_qr
    bmp.save_qrcode(qrw.qr, filename)
  File "/Applications/Electrum.app/Contents/Resources/lib/python2.7/gui/bmp.py", line 206, in save_qrcode
    if qr.isDark(r-1, c):
  File "/Applications/Electrum.app/Contents/Resources/lib/python2.7/gui/pyqrnative.py", line 54, in isDark
    raise Exception("%s,%s - %s" % (row, col, self.moduleCount))
Exception: 0,29 - 29

Reported on github ( https://github.com/spesmilo/electrum/issues/275 ), thanks