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solver.gradient() takes the adjoint of an unconverged forward solve and returns a wrong-signed number

Status: Open.

#804 In underworldcode/underworld3;

· lmoresi opened on Sep 28, 2026

test_1063_constrained_freeslip_parallel[ti]: topography moved from its recorded value (37.75 vs 37.08) at np 4

bugSomething isn't workingSomething isn't working

Status: Open.

#801 In underworldcode/underworld3;

· lmoresi opened on Sep 27, 2026

evaluate() is off by up to 4e-5 for a field the P2 space holds exactly, at points near a node

bugSomething isn't workingSomething isn't working

Status: Open.

#799 In underworldcode/underworld3;

· lmoresi opened on Sep 27, 2026

evaluate(..., evalf=True) flags every point as extrapolated

bugSomething isn't workingSomething isn't working

Status: Open.

#798 In underworldcode/underworld3;

· lmoresi opened on Sep 27, 2026

Particle (Lagrangian) stress history differs from serial by 1.2e-5 at np >= 4

bugSomething isn't workingSomething isn't working

Status: Open.

#797 In underworldcode/underworld3;

· lmoresi opened on Sep 27, 2026

test_0053 hang_watchdog: SIGSEGV inside CPython faulthandler dump_traceback during full tier_a runs (state-dependent)

Status: Open.

#793 In underworldcode/underworld3;

· lmoresi opened on Sep 26, 2026

The automatic cold-start 'Picard' warm-up (and solve(picard=N)) runs nrichardson with no linear solve — the design specifies a frozen-coefficient Picard step

Status: Open.

#791 In underworldcode/underworld3;

· lmoresi opened on Sep 25, 2026

Viscoelastic stress history in a units model: the particle store takes dimensional magnitudes, the nodal flavour crashes, and no history store carries stress units

Status: Open.

#788 In underworldcode/underworld3;

· lmoresi opened on Sep 24, 2026

Adjoint field dual is silently zero for a field that enters through a Dirichlet datum

Status: Open.

#787 In underworldcode/underworld3;

· lmoresi opened on Sep 24, 2026

uw.function.evaluate silently returns values for points far outside the mesh domain

Status: Open.

#786 In underworldcode/underworld3;

· lmoresi opened on Sep 24, 2026

Swarm.repopulate: after a removal the coordinate rows no longer match the value rows, so every refill in that call reads unrelated particles

Status: Open.

#784 In underworldcode/underworld3;

· lmoresi opened on Sep 24, 2026

Particle Lagrangian stress history: an inflow cell is refilled from stale neighbours, not from inflow_value

Status: Open.

#783 In underworldcode/underworld3;

· lmoresi opened on Sep 24, 2026