Issues

• A box holding a srcset image plus a sibling image lowers to raw-HTML responsive-media (product hover-swap cards)

  Automattic/blocks-engine#4378 · Filter by author chubes4 opened on Nov 4, 2026

• Route-variant stylesheet merge forks every body-anchored rule and enumerates routes per rule (1.26 MB → 7.9 MB)

  Automattic/blocks-engine#4376 · Filter by author chubes4 opened on Nov 4, 2026

• Empty script-populated <dialog> fails the quality gate as unsupported_element_loss

  Automattic/blocks-engine#4375 · Filter by author chubes4 opened on Nov 4, 2026

• Visually hidden table caption (sr-only) becomes a visible core/table caption

  Automattic/blocks-engine#4374 · Filter by author chubes4 opened on Nov 4, 2026

• Author border-color without a border style becomes a 3px solid border via core's has-border-color

  Automattic/blocks-engine#4371 · Filter by author chubes4 opened on Nov 4, 2026

• Simplify: one render-footprint fact replaces 128 overlapping empty/neutral/paint predicates

  Automattic/blocks-engine#4369 · Filter by author chubes4 opened on Nov 4, 2026

• Simplification tracker: shrink the parity hot path (HtmlCompilation and friends)

  Automattic/blocks-engine#4368 · Filter by author chubes4 opened on Nov 4, 2026

• Font stacks differing from a preset only in fallbacks stay literal; heading element style gets no font

  Automattic/blocks-engine#4365 · Filter by author chubes4 opened on Nov 4, 2026

• Descendant a:hover color rule refuses the ancestor section's text color preset binding

  Automattic/blocks-engine#4364 · Filter by author chubes4 opened on Nov 4, 2026

• Editor canvas: in-flow fixed layer auto-places at the end of its grid parent

  Automattic/blocks-engine#4363 · Filter by author chubes4 opened on Nov 4, 2026

• Device-split capture: unlabeled header/footer not extracted when desktop and mobile chrome differ

  Automattic/blocks-engine#4362 · Filter by author chubes4 opened on Nov 4, 2026

• Shared header not extracted on submenu-section routes: current parent item keeps current-state classes and presentation

  Automattic/blocks-engine#4359 · Filter by author chubes4 opened on Nov 4, 2026

• A link wrapping an image box lowers to raw-HTML responsive-media, and freezes deep repeated lists into one raw-HTML gallery

  Automattic/blocks-engine#4357 · Filter by author chubes4 opened on Nov 4, 2026

• Per-page editor-static-state stylesheets restate the full author stylesheet (theme CSS 105× source)

  Automattic/blocks-engine#4356 · Filter by author chubes4 opened on Nov 4, 2026

• jsaction entries with only custom event names are reported as lost interactive controls

  Automattic/blocks-engine#4355 · Filter by author chubes4 opened on Nov 4, 2026

• Shared header not extracted when the current-page class sits on the current item's link, not the aria-current element

  Automattic/blocks-engine#4352 · Filter by author chubes4 opened on Nov 4, 2026

• Wrapper-convention custom elements are unwrapped even when author attribute selectors key on them

  Automattic/blocks-engine#4345 · Filter by author chubes4 opened on Nov 4, 2026

• Form binding anchors on folded layout-shell, so provider replacement deletes the form's layout wrappers

  Automattic/blocks-engine#4337 · Filter by author chubes4 opened on Nov 4, 2026

• Anchor submenu toggle: classes merged onto navigation-submenu <li> and svg chevron dropped

  Automattic/blocks-engine#4336 · Filter by author chubes4 opened on Nov 4, 2026

• Shared wp_navigation entity keeps one page's source item classes, restyled by another page's CSS

  Automattic/blocks-engine#4335 · Filter by author chubes4 opened on Nov 4, 2026

• Shared header not extracted when the current nav link is marked only by a class swap

  Automattic/blocks-engine#4334 · Filter by author chubes4 opened on Nov 4, 2026

• Shared header not extracted when chrome element ids are route-numbered

  Automattic/blocks-engine#4333 · Filter by author chubes4 opened on Nov 4, 2026
  1

• Captured dialog trigger <a role="button"> falls back to core/html when the disclosure runtime is kept

  Automattic/blocks-engine#4332 · Filter by author chubes4 opened on Nov 4, 2026

• Memoize page-invariant CSS string parses on the compiler (~15% of compile)

  Automattic/blocks-engine#4325 · Filter by author chubes4 opened on Nov 4, 2026

• Button-styled link with its label inside one wrapper element imports as a layout shell instead of core/button

  Automattic/blocks-engine#4314 · Filter by author chubes4 opened on Nov 4, 2026