  We investigate $r$-process nucleosynthesis in three-dimensional general
relativistic magnetohydrodynamic simulations of jet-driven supernovae resulting
from rapidly rotating, strongly magnetized core-collapse. We explore the effect
of misaligning the pre-collapse magnetic field with respect to the rotation
axis by performing four simulations: one aligned model and models with 15, 30,
and 45 degree misalignments. The simulations we present employ a microphysical
finite-temperature equation of state and a leakage scheme that captures the
overall energetics and lepton number exchange due to post-bounce neutrino
emission and absorption. We track the thermodynamic properties of the ejected
material with Lagrangian tracer particles and analyse its composition with the
nuclear reaction network SkyNet. By using different neutrino luminosities in
post-processing the tracer data with SkyNet, we constrain the impact of
uncertainties in neutrino luminosities. We find that, for the aligned model
considered here, the use of an approximate leakage scheme results in neutrino
luminosity uncertainties corresponding to a factor of 100-1000 uncertainty in
the abundance of third peak $r$-process elements. Our results show that for
misalignments of 30 degrees or less, $r$-process elements are robustly produced
as long as neutrino luminosities are reasonably low ($\lesssim 5 \times
10^{52}$ erg s$^{-1}$). For a more extreme misalignment of 45 degrees, we find
the production of $r$-process elements beyond the second peak significantly
reduced. We conclude that robust $r$-process nucleosynthesis in
magnetorotational supernovae requires a progenitor stellar core with a large
poloidal magnetic field component that is at least moderately (within $\sim 30$
degrees) aligned with the rotation axis.
