  Based on $(2.712\pm0.014)\times10^9$ $\psi(3686)$ events collected by the
BESIII collaboration, evidence of the hadronic decay $h_c\to
K_S^0K^+\pi^-+c.c.$ is found with a significance of $4.3\sigma$ in the
$\psi(3686)\to\pi^0 h_c$ process. The branching fraction of $h_c\to K_S^0
K^+\pi^- +c.c.$ is measured to be $(7.3\pm0.8\pm1.8)\times10^{-4}$, where the
first and second uncertainties are statistical and systematic, respectively.
Combining with the exclusive decay width of $\eta_c\to K\bar{K}\pi$, our result
indicates inconsistencies with both pQCD and NRQCD predictions.
