  One of the most well-known extragalactic sources in the sky, quasar 3C 454.3,
shows a curved parsec-scale jet that has been exhaustively monitored with
very-long-baseline interferometry (VLBI) over the recent years. In this work,
we present a comprehensive analysis of four years of high-frequency VLBI
observations at 43 GHz and 86 GHz, between 2013-2017, in total intensity and
linear polarization. The images obtained from these observations enabled us to
study the jet structure and the magnetic field topology of the source on
spatial scales down to 4.6 parsec in projected distance. The kinematic analysis
reveals the abrupt vanishing of at least four new superluminal jet features in
a characteristic jet region (i.e., region C), which is located at an
approximate distance of 0.6 milliarcseconds from the VLBI core. Our results
support a model in which the jet bends, directing the relativistic plasma flow
almost perfectly toward our line of sight, co-spatially with the region where
components appear to stop.
