diff --git a/crates/qbz-qt/qml/cards/PlaylistCollage.qml b/crates/qbz-qt/qml/cards/PlaylistCollage.qml
index cb1436b69..f198028fe 100644
--- a/crates/qbz-qt/qml/cards/PlaylistCollage.qml
+++ b/crates/qbz-qt/qml/cards/PlaylistCollage.qml
@@ -135,7 +135,10 @@ Item {
         id: canvas
         anchors.fill: parent
         renderTarget: Canvas.Image
-        renderStrategy: Canvas.Cooperative
+        // See RoundedImage.qml: GUI-thread raster. This canvas repaints from
+        // libraryArtworkReady and from four async image probes, on a card the
+        // feed recycles.
+        renderStrategy: Canvas.Immediate
 
         // Dimension probes: Canvas cannot query a loaded image's intrinsic
         // size and the crop fit needs it (RoundedImage's pattern, one per
diff --git a/crates/qbz-qt/qml/shell/AmbientField.qml b/crates/qbz-qt/qml/shell/AmbientField.qml
index 5dff24c58..7391fbdc6 100644
--- a/crates/qbz-qt/qml/shell/AmbientField.qml
+++ b/crates/qbz-qt/qml/shell/AmbientField.qml
@@ -45,7 +45,10 @@ Canvas {
         : true
 
     renderTarget: Canvas.Image
-    renderStrategy: Canvas.Cooperative
+    // See RoundedImage.qml. This one repaints 30x/s for the whole window
+    // lifetime, so it is the canvas most likely to be mid-raster when another
+    // is torn down on the same render thread.
+    renderStrategy: Canvas.Immediate
 
     // The shader clock (t = time * 0.75). Accumulated at ~30fps.
     property real t: Math.random() * 40.0
diff --git a/crates/qbz-qt/qml/theme/RoundedImage.qml b/crates/qbz-qt/qml/theme/RoundedImage.qml
index 429905ff4..bccc26eea 100644
--- a/crates/qbz-qt/qml/theme/RoundedImage.qml
+++ b/crates/qbz-qt/qml/theme/RoundedImage.qml
@@ -25,7 +25,13 @@ Canvas {
     property string fit: "crop"
 
     renderTarget: Canvas.Image
-    renderStrategy: Canvas.Cooperative
+    // GUI-thread raster. Cooperative/Threaded rasterize on the SCENE GRAPH
+    // RENDER THREAD, and this item is created and destroyed by list recycling
+    // while async artwork callbacks schedule repaints — the render thread can
+    // be mid-draw on a pixmap whose Canvas is already gone. Immediate keeps
+    // paint and destruction on one thread. renderTarget: Image already meant
+    // CPU raster, so this costs no visual change.
+    renderStrategy: Canvas.Immediate
 
     // Dimension probe: Canvas can't query the loaded image's intrinsic
     // size, and PreserveAspectCrop needs it. A hidden Image doubles as