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Old-frame SL reach-back amplifies exponentially on per-step-moving meshes (free-surface T blow-up; affects movers/adapt identically)

Status: Open.

#423 In underworldcode/underworld3;

· lmoresi opened on Jul 26, 2026

3D shape relaxation improves quality but not accuracy — does an anisotropic metric recover the 2D gain?

enhancementNew feature or requestNew feature or request

Status: Open.

#422 In underworldcode/underworld3;

· lmoresi opened on Jul 26, 2026

FreeSurface: prescribed surface datum loses ~7% net flux in parallel (surface-array <-> field round trip)

Status: Open.

#421 In underworldcode/underworld3;

· lmoresi opened on Jul 26, 2026

MMPDE mover silently does nothing on graded meshes (partition-dependent area floor)

bugSomething isn't workingSomething isn't working

Status: Open.

#419 In underworldcode/underworld3;

· lmoresi opened on Jul 25, 2026

Repeated rotated free-slip Stokes solves rebuild solver state and grow RSS until OOM

bugSomething isn't workingSomething isn't working

enhancementNew feature or requestNew feature or request

Status: Open.

#417 In underworldcode/underworld3;

· gthyagi opened on Jul 25, 2026

sympy.Max/Min(UWexpression, plain number) crashes at construction: AttributeError '_prec'

Status: Open.

#415 In underworldcode/underworld3;

· lmoresi opened on Jul 24, 2026

Curved-boundary P2 VERTEX flux/traction values converge only slowly — document and steer consumers to midpoint/fitted quantities

Status: Open.

#414 In underworldcode/underworld3;

· lmoresi opened on Jul 24, 2026

boundary_flux: 2D P1 traces crash with a bare KeyError in the lumped line-mass assembly

Status: Open.

#413 In underworldcode/underworld3;

· lmoresi opened on Jul 24, 2026

compute_volume_residual_fields / boundary sibling still strip Dirichlet values (the #407 fix was applied to one of three duplicated variants)

Status: Open.

#411 In underworldcode/underworld3;

· lmoresi opened on Jul 24, 2026

Time-dependent Dirichlet BCs are broken in solve(): essential values inserted at PETSC_MIN_REAL, mesh.t kernels see -1.8e308

Status: Open.

#410 In underworldcode/underworld3;

· lmoresi opened on Jul 24, 2026

boundary_flux 3D assembly gathers the full global boundary onto every rank (memory scaling)

Status: Open.

#408 In underworldcode/underworld3;

· lmoresi opened on Jul 24, 2026

Empty-rank support, layer 2: evaluate/points_in_domain, radii/centroid reductions, gather_data NaN-stripping

Status: Open.

#405 In underworldcode/underworld3;

· lmoresi opened on Jul 24, 2026