export video broken [Arch Linux]

[Chris N]

Arch: x86_64
OS: Arch Linux kernel:4.9.16
Install Method: pacman 2.2.0-3 & AUR bzr 2.3.1 dev (both exhibiting the issue)
MLT version: 6.4.1-5
Qt Version: 4.8.7-16 & 5.8.0-7
ffmpeg: 3.2.4-1 & 2.8.11-1
Python: 3.6.0-2 & 2.7.13-1
All except bzr installed via pacman from core Arch repository

terminal output when attempting to invoke "Export Video":

Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/openshot_qt/windows/main_window.py", line 626, in actionExportVideo_trigger
    win = Export()
  File "/usr/lib/python3.6/site-packages/openshot_qt/windows/export.py", line 88, in __init__
    get_app().window.timeline_sync.timeline.ClearAllCache()
  File "/usr/lib/python3.6/site-packages/openshot.py", line 3967, in <lambda>
    __getattr__ = lambda self, name: _swig_getattr(self, Timeline, name)
  File "/usr/lib/python3.6/site-packages/openshot.py", line 80, in _swig_getattr
    raise AttributeError("'%s' object has no attribute '%s'" % (class_type.__name__, name))
AttributeError: 'Timeline' object has no attribute 'ClearAllCache'
     metrics:INFO Track metric: {'access-control-allow-origin': '*', 'date': 'Wed, 12 Apr 2017 14:43:42 GMT', 'pragma': 'no-cache', 'expires': 'Mon, 01 Jan 1990 00:00:00 GMT', 'last-modified': 'Sun, 17 May 1998 03:00:00 GMT', 'x-content-type-options': 'nosniff', 'content-type': 'image/gif', 'server': 'Golfe2', 'content-length': '35', 'age': '111752', 'cache-control': 'no-cache, no-store, must-revalidate', 'status': '200', 'content-location': 'http://www.google-analytics.com/collect?cid=ae19ec3c-2206-4729-b7b8-12efd4eb416e&v=1&tid=UA-4381101-5&an=OpenShot+Video+Editor&aip=1&aid=org.openshot.openshot-qt&av=2.3.1-dev&ul=en&ua=Mozilla%2F5.0+%28X11%3B+Linux+x86_64%29+AppleWebKit%2F537.36+%28KHTML%2C+like+Gecko%29+Chrome%2F37.0.2062.120+Safari%2F537.36&cd1=0.1.3&cd2=3.6.0&cd3=5.8.0&cd4=5.8&cd5=--&t=screenview&cd=export-screen'} (b'GIF89a\x01\x00\x01\x00\x80\xff\x00\xff\xff\xff\x00\x00\x00,\x00\x00\x00\x00\x01\x00\x01\x00\x00\x02\x02D\x01\x00;')
     metrics:INFO Track exception: {'date': 'Thu, 13 Apr 2017 21:49:22 GMT', 'server': 'Apache/2.2.22 (Ubuntu)', 'vary': 'Accept-Encoding', 'content-length': '29', 'content-type': 'text/html; charset=utf-8', 'status': '200', '-content-encoding': 'gzip'} (b'*duplicate-exception-ignored*')