When ussing the editor to generate all planets, carna does generate for 2 sseconds, the dissapear, the problem seems to be this

4111.765 Warning CompiledMapGenSettings.cpp:284: Noise expression 'carna_moisture' (attempted to use for 'moisture') is not defined; ignoring
4324.421 Warning CompiledMapGenSettings.cpp:284: Noise expression 'carna_moisture' (attempted to use for 'moisture') is not defined; ignoring
4350.011 Warning CompiledMapGenSettings.cpp:284: Noise expression 'carna_moisture' (attempted to use for 'moisture') is not defined; ignoring

Carna won't generate unless you land on it. If you are using the editor, you will have to have the tick paused and then switch the map over to it to allow it to generate, then you can unpause the tick.