Details
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Bug
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Resolution: Fixed
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P1: Critical
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6.9.0 Beta1, 6.9.0 Beta2
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Windows11 23H2 x64, branch 6.9
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1accd2421 (dev), 3bcc785d0 (6.9)
Description
Install Qt 6.9.0 beta2 (or beta1) Windows binaries, include Extensions-QtWebEngine, reproduces with all Windows desktop binaries (LLVM-MinGW, MinGW and MSVC2022). Windows on arm not tested.
Launch Qt Widgets Designer, and create new canvas (with buttons), scroll down the item view on left, and drag OpenGLWidget, QQuickWidget or QWebEngineView to canvas. Widgets Designer UI goes completely white losing all items and then application disappears. No log prints visible even is app is started from command prompt. Other components can be dragged to canvas without issues