Missing phasePropertyName in basicThermo.C
Should be like:
This is why: The basicThermo has some constructors that use the 'thermo:alpha' volScalarField. Two of them use the 'phasePropertyName("thermo:alpha")' format, while the third one uses simply 'thermo:alpha'. This creates a problem because objectRegistry doesn't register duplicated names. So when we have e.g. multiphase simulation, the liquid and solid 'thermo:alpha' members will not be registered.