As soon as I enter a new world and moving my mouse, the view can't stop facing the ground. Moving the mouse causes rotation around the vertical axis only. All other commands seem to work.
Environment
Ubuntu 18.04 - 64 bits
Java openjdk 1.8.0_181
Installed with Debian package
On VM VirtualBox 5.1.18
Why is this marked as resulved? The duplicate it points to certainly isn't resolved.