  In July 2021, PKS 1510-089 exhibited a significant flux drop in the
high-energy gamma-ray (by a factor 10) and optical (by a factor 5) bands and
remained in this low state throughout 2022. Similarly, the optical polarization
in the source vanished, resulting in the optical spectrum being fully explained
through the steady flux of the accretion disk and the broad-line region. Unlike
the aforementioned bands, the very-high-energy gamma-ray and X-ray fluxes did
not exhibit a significant flux drop from year to year. This suggests that the
steady-state very-high-energy gamma-ray and X-ray fluxes originate from a
different emission region than the vanished parts of the high-energy gamma-ray
and optical jet fluxes. The latter component has disappeared through either a
swing of the jet away from the line-of-sight or a significant drop in the
photon production efficiency of the jet close to the black hole. Either change
could become visible in high-resolution radio images.
