In the lacunar spinels, the electronic structure is described on the basis of inter- and intracluster interactions of tetrahedral clusters, and tuning these can lead to myriad fascinating electronic and magnetic ground states. In this work, we employ magnetic measurements, synchrotron x-ray and neutron scattering, and first-principles electronic structure calculations to examine the coupling between structural and magnetic phase evolution in , including the emergence of a skyrmionic regime in the magnetic phase diagram. We show that the competition between two distinct Jahn-Teller distortions of the room temperature cubic structure leads to the coexistence of the ground-state phase and a metastable phase. The magnetic properties of these two phases are computationally shown to be very different, with the phase exhibiting uniaxial ferromagnetism and the phase hosting a complex magnetic phase diagram including equilibrium Néel-type skyrmions stable from nearly  = 28 K down to  = 2 K, the lowest measured temperature. The large change in magnetic behavior induced by a small structural distortion reveals that is an exciting candidate material for tuning unconventional magnetic properties via mechanical means.