after changing the password in the forum it is not possible to download the the “Free Plan” version anymore.
When entering the current password in the installer dialog (the one shown here: http://v-play.net/doc/vplay-installation.html#install-v-play-sdk-with-qt-sdk) then the dialog will reset and it is not possible to finish the installation.
The things I’ve already tried:
Downloading a new installer
After a previous installation which worked, the only thing that changed was the forum password.
PS: Hopefully it will be possible to install the libraries along with an existing Qt tool chain in the future.