  We improve the description of $\mathbb{F}$-limits of noncollapsed Ricci flows
in the K\"ahler setting. In particular, the singular strata $\mathcal{S}^k$ of
such metric flows satisfy $\mathcal{S}^{2j}=\mathcal{S}^{2j+1}$. We also prove
an analogous result for quantitative strata, and show that any tangent flow
admits a nontrivial one-parameter action by isometries, which is locally free
on the cone link in the static case. The main results are established using
parabolic regularizations of conjugate heat kernel potential functions based at
almost-selfsimilar points, which may be of independent interest.
