Once crystallization started, the amount of this form increased very rapidly being the most important form at the end of isothermal crystallization.
For a pure TAG, crystallized under a fixed set of conditions (temperature, pressure, composition), only one solid phase will be consistent with a minimum free energy of the system. As previously mentioned, for any polymorphic system, phase transitions toward the most stable phase are unavoidable, due to thermodynamic drive to energy minimization.