Video QML type crashes (0xC0000005: Access violation) when loading .avi file

I am experiencing app crashes due to a Access violation when trying to load a file with the Video QML Type. I am running a C++/Qt 11.1 application on Windows, using msvc2017 compiler.

I am currently trying to render a simple video in a loop within my application using the following code:

import QtQuick 2.11
import QtMultimedia 5.8

Video {
    id: videoPlayer
    anchors.fill: parent
    source: "C:/Users/Me/Desktop/video.avi"
    autoLoad: true
    autoPlay: false
    focus: true
    fillMode: VideoOutput.PreserveAspectFit
    loops: MediaPlayer.Infinite
    muted: true
}

When executing this code I am getting an exception with the following call stack:

It looks like something with a signal from the QAbstractVideoSurface inside the QtMultimedia module is not working out. What I am wondering about is that this exception does not happen always, but only in roughly 4/5 application runs (if I turn autoLoad: false and triggering the load by a click, I sometimes works somehow). As well it only happens in Release build configuration.

I was already thinking about a codec issue, but I could reproduce it using different video files with different codecs.

It actually looks like a threading problem to me, but I have currently no clue how this appears as I am actually just trying to render the code above in the main UI thread.

Maybe somebody already ran in a similar or connected issue?

Thanks already!