qt-unified-windows-x86-3.1.0-online_264.exe

Install from staging with rta.test03@digia.com account, select gategory Default and fetch. Depencency error shows up (see attach 1_xx), when that is clicked away, empty error dialog appears (see attach 2_xx) and when that's clicked away installer crashes (see attach 3_xx).

There is same depencency error and empty error dialog on linux and mac, but the installer is not crashing there.