DeckLink: green stripes with GStreamer 1.16 (or master)

Hello,

When viewing a video from a DeckLink 8 Pro with GStreamer 1.16 (or the master branch), I'm getting green vertical stripes on the left side of the frame. This side is also much less sharp that the right side, as you can see on this screenshot:

I updated the decklink plugin code to use the latest BlackMagic SDK, problem is still there. The GStreamer version packaged with Ubuntu 16.04 LTS (1.8.3) works fine.

Is there anything I can do? I'd like to use GStreamer to display the video in a QML Qt application with the qmlglsink element.

Thanks in advance!