SDK Emulator on Fedora 31
Application SDK Emulator doesn't start on Fedora 31. Problem seems to be in VirtualBox, which does not open a window but stops. Installing testbuild version of VirtualBox seems to solve the problem.
Non working present version of VirtualBox is 6.1.4.
Working testbuild version 6.1.5 for Linux 64bit can be installed from: https://www.virtualbox.org/wiki/Testbuilds File: VirtualBox-6.1.5-136807-Linux_amd64.run