The newly downloaded Anki 2.1.49 (windows) will not open

[dae]

Please try the qt6 and qt5 test builds - do they both have the same problem?

New toolkit and packaging test (round 2)

All platforms Separate qt5 and qt6 downloads are provided. The qt6 downloads use the new toolkit first introduced in the previous test. Since the previous test, some compatibility shims have been added to the Qt6 builds by @glutanimate, which should improve add-on compatibility. Please let us know how they go for you. The qt5 builds use Anki’s latest code, but with older toolkit versions like in previous Anki releases. They may be useful for comparison, and there may be some add-ons that work…