QT 5.6.1 Designer x64 not launching

[b2soft]

I installed QT 5.6.1 x64 toolset (using qt-opensource-windows-x86-msvc2015_64-5.6.1-1 setup file) on the PC using Windows 10 Pro x64. It seems to QT Designer (.../bin/designer.exe) is not starting. It is in task manager process list (with 0% CPU and 12 MB memory using) but nothing is shown (no windows, splashes etc).

QT Designer from QT 5.1.1 x86 toolset works properly.

Should I need QT 5.6.1 x86 toolset to use QT Designer tool? Or there is another way?

UPD> The same problem is using QT 5.7 x64

[SGaist]

Hi and welcome to devnet,

Looks rather like a bug.

Can you test with the 32bit version ? I doubt that it should anything but worth to inspect.

[b2soft]

I've just installed QT 5.7.0 x86 for msvs2015 toolset.
QT Designer not starting at all :(

[SGaist]

Then there might be a bug that has lurked in.

You should take a look at the bug report system to see if it's something known.

[b2soft]

@SGaist
Now I had deep googled and I found
https://bugreports.qt.io/browse/QTBUG-53984

[SGaist]

Thanks for sharing !

[b2soft]

Yeh, I just deleted (moved to another directory works too :) ):
Qt5WebEngineWidgets.dll
Qt5WebEngineWidgetsd.dll
Qt5WebEngineWidgetsd.pdb

And QT Designer starts and works fine

It's temporary solution, Bug had been reported before. Will wait for solution. Thanks!

[SGaist]

Glad you found a workaround and thanks for sharing !

Can you also share the bug report link ?

[b2soft]

@SGaist https://bugreports.qt.io/browse/QTBUG-53984
If I can help - I will