Plate solve not working since upgrade

Hello,

I am selecting a target via Astrobin, and then try to centre, but the screen flickers and does nothing. I am seeing this error in the logs …

Thanks

Alistair

3/20/17 21:17:46.713][DEBUG] [Main Thread] Connecting ASCOM camera: ASCOM.Atik.Camera…
[03/20/17 21:17:47.252][DEBUG] [Main Thread] Camera does not implement ASCOM gain.
[03/20/17 21:17:47.403][DEBUG] [Main Thread] Camera cooler detected…
[03/20/17 21:17:47.409][DEBUG] [Main Thread] Camera cooler is OFF…
[03/20/17 21:18:01.885][DEBUG] [Telescope Thread] Center telescope message received…
[03/20/17 21:18:01.885][DEBUG] [Telescope Thread] Solving with Plate Solver PlateSolve2…
[03/20/17 21:18:02.096][DEBUG] [Telescope Thread] Setting filter for auto center…
[03/20/17 21:18:02.102][DEBUG] [Telescope Thread] Could not set the centering override filter! Aborting auto center…
[03/20/17 21:18:02.102][DEBUG] [Telescope Thread] Aborting auto center 1…
[03/20/17 21:18:02.103][DEBUG] [Telescope Thread] Auto center aborted, closing centering dialog…
[03/20/17 21:18:53.360][DEBUG] [Main Thread] Connecting ASCOM focuser…
[03/20/17 21:18:54.069][DEBUG] [Main Thread] Focuser supports temperature
[03/20/17 21:18:54.069][DEBUG] [Main Thread] Current temperature reports: 7
[03/20/17 21:18:54.074][DEBUG] [Main Thread] Focuser reports Max Increment as: 16000
[03/20/17 21:18:54.074][DEBUG] [Main Thread] Focuser reports max steps as: 16000
[03/20/17 21:19:01.239][DEBUG] [Telescope Thread] Center telescope message received…
[03/20/17 21:19:01.239][DEBUG] [Telescope Thread] Solving with Plate Solver PlateSolve2…
[03/20/17 21:19:01.443][DEBUG] [Telescope Thread] Setting filter for auto center…
[03/20/17 21:19:01.445][DEBUG] [Telescope Thread] Could not set the centering override filter! Aborting auto center…
[03/20/17 21:19:01.445][DEBUG] [Telescope Thread] Aborting auto center 1…
[03/20/17 21:19:01.445][DEBUG] [Telescope Thread] Auto center aborted, closing centering dialog…