Qt 6.3.0-rc installation qt-unified-linux-x64-4.3.0-1-online.run results in segmentation fault

• Run qt-unified-linux-x64-4.3.0-1-online.run from Konsole
• Install all of Qt 6.3.0-rc but Android to a directory owned by the user.
• Install Qt Installer Framework 4.3
• Choose to send anonymous info to Qt

Installation seems to go fine until what appears to be the end when the installer terminates.

The only message printed to the console:

Segmentation fault (core dumped) 

Note: Previous 6.3.0 installations (-beta, -beta2, -beta3) all worked fine on the same computer and operating system.

Problems started appearing with the recent upgrade to Qt Creator 7, when the installation did not complete due apparently to some files reported as missing.

So, I deleted the whole installation directory and reinstalled a couple of times, resulting each time in the mentioned segmentation fault.