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The compound Co3Sn2S2 is a ferromagnet formed by layers of Co atoms in a Kagomestructure. Co3Sn2S2 forms a Weyl semimetal state in which ferromagnetic order onsets at 170 K, breaking time-reversal symmetry. Theory predicts that ferromagnetic domains separate electrons of opposite helicity, leading to the remarkable prediction that domain walls become charged when zero modes localized at the boundary are occupied. We have used our scanning microscope to image domains in Co3Sn2S2 and measure domain wall mobility. We discovered a deep minimum in mobility that reveals a crossover between two regimes of domain wall propagation. We demonstrated that this crossover is a manifestation of a 2D Ising transition that occurs within the domain walls, in which the magnetization texture changes from continuous rotation to unidirectional variation. This research broadens the conventional binary classification of domain walls into Bloch and Néel textures, suggesting new possibilities for modulating electron transport by domain wall manipulation.