  We present new high fidelity optical coronagraphic imagery of the inner
$\sim$50 au of AU Mic's edge-on debris disk using the BAR5 occulter of the
Hubble Space Telescope Imaging Spectrograph (HST/STIS) obtained on 26-27 July
2018. This new imagery reveals that "feature A", residing at a projected
stellocentric separation of 14.2 au on SE-side of the disk, exhibits an
apparent "loop-like" morphology at the time of our observations. The loop has a
projected width of 1.5 au and rises 2.3 au above the disk midplane. We also
explored TESS photometric observations of AU Mic that are consistent with
evidence of two starspot complexes in the system. The likely co-alignment of
the stellar and disk rotational axes breaks degeneracies in detailed spot
modeling, indicating that AU Mic's projected magnetic field axis is offset from
its rotational axis. We speculate that small grains in AU Mic's disk could be
sculpted by a time-dependent wind that is influenced by this offset magnetic
field axis, analogous to co-rotating Solar interaction regions that sculpt and
influence the inner and outer regions of our own Heliosphere. Alternatively, if
the observed spot modulation is indicative of a significant mis-alignment of
the stellar and disk rotational axes, we suggest the disk could still be
sculpted by the differential equatorial versus polar wind that it sees with
every stellar rotation.
