STEPS TO REPRODUCE 1. Install Koko from nightly Flatpak repo (https://cdn.kde.org/flatpak/koko-nightly/org.kde.koko.flatpakref) 2. flatpak run org.kde.koko /usr/share/wallpapers/Next/contents/images/5120x2880.png QList("/home/nate/Pictures") qrc:/qt/qml/org/kde/koko/DelegateLoader.qml:29:5: TypeError: Cannot read property 'height' of null qrc:/qt/qml/org/kde/koko/DelegateLoader.qml:28:5: TypeError: Cannot read property 'width' of null file:///usr/lib/qml/org/kde/kirigami/PageRow.qml:987:9: QML QQuickItem*: StackView has detected conflicting anchors. Transitions may not execute properly. [app hangs; no UI is ever shown] This issue was caused by https://invent.kde.org/graphics/koko/-/commit/ee8f5b3ff7f1757ec1bfa83e0c61ff760dd72d67. Rolling back to e0125d87dcaeaab65ac2ede05f9eb7c1d7518a92 fixes it.
A possibly relevant merge request was started @ https://invent.kde.org/graphics/koko/-/merge_requests/226
Git commit f2b915629f4f64d9c5ca258a374c0679c23df307 by Marco Martin. Committed on 01/10/2025 at 14:54. Pushed by mart into branch 'master'. Remove thumbnailbar loading placeholder the fake thumbnails didn't buy that much and had a risk of a model with infinite items (due to an unckecked division) remove it and show the real listview directly M +21 -41 src/qml/ImageViewPage.qml https://invent.kde.org/graphics/koko/-/commit/f2b915629f4f64d9c5ca258a374c0679c23df307