Rigid body causes object to fall upwards

I added a rigid body to a cube with no script and with a collier but instead, it falls upwards instead of downwards. I have tried changing the mass to a negative number to reverse the gravity but when i run it automatically changes back to default.
Does anyone know why this happens and how i can fix it?
Im using unity version 2019.2,

EditProject SettingsPhysics

Your gravity should be set to a negative number

I tried doing that, yet, the objects are still falling upwards. i changed the editor, i tried to re-install unity and the objects are still falling upwards instead of falling downwards. can someone please help??? ;w;

By any chance, didn’t you make the camera itself rigid body? It happened to me, so it might be the issue