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Qml Canvas in SplitView: on resizing the canvas the context disappear

Dear friends, i hope somebody can help me. I use a canvas in a splitview. the canvas item has minWidth , so that i can shrink it to minimum width. But here came an error. Than i resize (use the splitview) the all painted content disappear! my code looks like: main.qml: ...     SplitView{         id:spitview         anchors.fill: parent;           Item{             Layout.fillWidth: true;             Layout.fillHeight: true;             Viewer{                 anchors.fill: parent;                 anchors.margins: 5;             }         }           Item{             width: parent.width/4;             Layout.minimumWidth: parent.width/4;             Layout.maximumWidth: parent.width/4+100;             Layout.fillHeight: true;         }     } Viewer.qml: Canvas{ anchors.fill:parent onPaint: [paint some stuff] } Please help me, i dont want to use a constant size for the canvas-item. Thanks.

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