The playback of video seems to fail (and program crashes) when using QGraphicsVideoItem and from the console I can see that the problem was incompatible Qt libraries. Is this a known issue or am I missing something. The console said:

Cannot mix incompatible Qt library(version 0x40604) with this library (version 0x40701)

When trying to play video with QVideoWidget with QGraphicsProxyWidget, also the playback of video fails by only playing the audio track.

Any ideas or workarounds?