Issues

• [BUG]: Runs at different --seed values trace the same rays

  mccode-dev/McCode#2807 · Filter by author henrikjacobsenfys opened on Oct 17, 2026
  1

• [BUG]: PhononSimple_process and Phonon_simple` scatter 1/(4π × 1.00866) of the one-phonon cross-section they implement

  mccode-dev/McCode#2792 · Filter by author henrikjacobsenfys opened on Oct 13, 2026
  2

• [BUG]: Samples and certain other comps should use PROP_NO_G_DT(dt) and friends

  mccode-dev/McCode#2791 · Filter by author willend opened on Oct 12, 2026

• [BUG]: mcdis_box likely typo

  bug
  mccode-dev/McCode#2790 · Filter by author ebknudsen opened on Oct 12, 2026
  3

• [ BUG ] Union_conditional_PSD / Union_conditional_standard: stack buffer overflow when target_loggers is longer than 511 characters

  mccode-dev/McCode#2788 · Filter by author lomholy-agentic opened on Oct 12, 2026
  5

• [BUG]: Unittest_USERVARS_TYPES instruments do not function correctly with OpenACC

  mccode-dev/McCode#2778 · Filter by author willend opened on Oct 10, 2026

• Broken links in the docs

  mccode-dev/McCode#2771 · Filter by author keyral opened on Oct 8, 2026

• [BUG]: mcdisplay's list a --default that should in fact be today's -y

  mccode-dev/McCode#2768 · Filter by author willend opened on Oct 7, 2026

• [BUG]: mcstas-antlr issue with specific (AI-generated) NeXus-instrument

  mccode-dev/McCode#2745 · Filter by author willend opened on Oct 4, 2026
  1

• [BUG]: McStas Union Texture_process supports only a==b unit cells

  mccode-dev/McCode#2717 · Filter by author willend opened on Sep 30, 2026

• [BUG]: Monitor_nD fails to compile with openACC on newest nvc version

  mccode-dev/McCode#2682 · Filter by author mads-bertelsen opened on Sep 23, 2026

• [BUG]: macOS and python=3.14, qscintilla2 not functional

  mccode-dev/McCode#2680 · Filter by author willend opened on Sep 22, 2026
  1

• SasView_ components use invalid stack-array syntax

  mccode-dev/McCode#2679 · Filter by author g5t opened on Sep 22, 2026

• Radial_div.comp uses unsupported grammar syntax

  mccode-dev/McCode#2678 · Filter by author g5t opened on Sep 22, 2026

• [BUG]: mcdoc / mxdoc Some_component_pattern stores to main doc dir

  mccode-dev/McCode#2658 · Filter by author willend opened on Sep 12, 2026

• [BUG]: McStas PowderN use of cif2hkl for cif-files is semi-buggy

  bug
  mccode-dev/McCode#2635 · Filter by author willend opened on Sep 9, 2026

• [CI/repo]: Use GitHub LFS / cache to make MCPL-input for ESS instrument available

  mccode-dev/McCode#2628 · Filter by author willend opened on Sep 5, 2026

• [BUG]: Discrepancy in ESS_butterfly_MCPL_test (Ubuntu/clang/openmpi)

  mccode-dev/McCode#2617 · Filter by author willend opened on Aug 29, 2026

• [BUG]: Source_gen does not generate wavelength distribution according to my input file

  mccode-dev/McCode#2565 · Filter by author Lomholy opened on Jul 9, 2026
  10

• [FEATURE]: Support input_path in generated make() functions from mcstas-pygen

  mccode-dev/McCode#2554 · Filter by author MilanKlausz opened on Jul 6, 2026
  8

• [FEATURE]: McXtrace Filter.comp (and others) could use the FFAST database directly, instead of going through intermediary datafiles

  mccode-dev/McCode#2553 · Filter by author ebknudsen opened on Jul 5, 2026
  1

• [BUG]: To be a valid ‘mcplot’ solution, mcplot-html needs an option for scan (mccode.dat) data

  mccode-dev/McCode#2551 · Filter by author willend opened on Jul 4, 2026

• [BUG]: McXtrace Filter.comp misses refraction on OFF shapes

  mccode-dev/McCode#2523 · Filter by author willend opened on Jun 26, 2026

• [BUG]: McXtrace and GPU: Indications of thread collisions / undefined behaviour

  mccode-dev/McCode#2514 · Filter by author willend opened on Jun 25, 2026
  3

  

• [BUG]: Issue with “missing channel” in Incoherent algorithm?

  mccode-dev/McCode#2502 · Filter by author willend opened on Jun 16, 2026
  14