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CI: intermittent MPI/UCX init abort in the import smoke test (Azure runner, ud_verbs/mana_0)

bugSomething isn't workingSomething isn't working

Status: Open.

#461 In underworldcode/underworld3;

· lmoresi opened on Jul 28, 2026

2D boundary-flux recovery: degree-3 traces return silently WRONG flux (P3 edge DOFs collapse onto one coordinate key)

bugSomething isn't workingSomething isn't working

Status: Open.

#459 In underworldcode/underworld3;

· lmoresi opened on Jul 28, 2026

TransverseIsotropicFlowModel: consistent (Newton) tangent inconsistent with the residual when anisotropy is active

Status: Open.

#457 In underworldcode/underworld3;

· lmoresi opened on Jul 28, 2026

plasticity-solvers skill teaches enable_yield_homotopy(), which no longer exists

Status: Open.

#454 In underworldcode/underworld3;

· lmoresi opened on Jul 28, 2026

3D nested P1 MG prolongation has O(1) wrong entries (nested_prolongation_from_dms), invisible to its own test

Status: Open.

#449 In underworldcode/underworld3;

· lmoresi opened on Jul 28, 2026

Rotated-BC analytic-normal guard false-positive when a second mesh exists at reaction read-out (multi-mesh unwrap identity)

Status: Open.

#445 In underworldcode/underworld3;

· lmoresi opened on Jul 27, 2026

Free surface with nonlinear / anisotropic rheology: strong material-boundary constraint is linear-only (penalty fallback leaks)

Status: Open.

#438 In underworldcode/underworld3;

· lmoresi opened on Jul 27, 2026

uw.function.evaluate returns wrong values for P1 fields at points exactly on cell edges (3D)

bugSomething isn't workingSomething isn't working

Status: Open.

#432 In underworldcode/underworld3;

· lmoresi opened on Jul 27, 2026

CBF sigma_nn recovery on deformed/faceted boundaries: ~2.4% amplitude deficit (chord-vs-arc boundary mass suspected)

Status: Open.

#431 In underworldcode/underworld3;

· lmoresi opened on Jul 27, 2026

custom_mg.rbf_prolongation: no conditioning path on an indefinite saddle solve, and its only test asserts convergence rather than accuracy

Status: Open.

#429 In underworldcode/underworld3;

· lmoresi opened on Jul 27, 2026

Use the nested hierarchy for MG transfers on adapt children (topological prolongation)

enhancementNew feature or requestNew feature or request

Status: Open.

#425 In underworldcode/underworld3;

· lmoresi opened on Jul 26, 2026

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