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Turbopack: CSS HMR sometimes lags one revision behind edits

CSSRelated to CSS.Related to CSS.

TurbopackRelated to Turbopack with Next.js.Related to Turbopack with Next.js.

Status: Open.

Bug

#93052 In vercel/next.js;

· Dougg11 opened on Apr 20, 2026

Turbopack: misdetected workspace root (from stray parent lockfile) causes RAM exhaustion (40+ GB) and infinite module-resolution retry on first request

CSSRelated to CSS.Related to CSS.

TurbopackRelated to Turbopack with Next.js.Related to Turbopack with Next.js.

Status: Open.

Bug

#92978 In vercel/next.js;

· MrMyNameMaster opened on Apr 19, 2026

Bug: CSS minification error in next.js@14.2.35 via CssMinimizerPlugin

CSSRelated to CSS.Related to CSS.

Status: Open.

Bug

#91551 In vercel/next.js;

· kelieCn opened on Mar 18, 2026

CSS Media Query Compilation Issue

CSSRelated to CSS.Related to CSS.

Status: Open.

Bug

#90133 In vercel/next.js;

· dlouhak opened on Feb 18, 2026

broken css url when used "asset" rule type

CSSRelated to CSS.Related to CSS.

Status: Open.

Bug

#89828 In vercel/next.js;

· megastels opened on Feb 11, 2026

Webpack mangles @import ... supports(...) syntax when inlining CSS

CSSRelated to CSS.Related to CSS.

WebpackRelated to Webpack with Next.js.Related to Webpack with Next.js.

Status: Open.

Bug

#89602 In vercel/next.js;

· robert-j-webb opened on Feb 6, 2026

CRITICAL [Turbopack | CSS]: CSS prioritization differs between next dev --turbopack and next build --turbopack

CSSRelated to CSS.Related to CSS.

TurbopackRelated to Turbopack with Next.js.Related to Turbopack with Next.js.

Status: Open.

Bug

#89523 In vercel/next.js;

· GlebKodrik opened on Feb 5, 2026

App Router includes unused CSS module in unrelated routes (bundle analyzer + runtime)

CSSRelated to CSS.Related to CSS.

TurbopackRelated to Turbopack with Next.js.Related to Turbopack with Next.js.

WebpackRelated to Webpack with Next.js.Related to Webpack with Next.js.

Status: Open.

Bug

#89252 In vercel/next.js;

· t18n opened on Jan 29, 2026

PLEASE START investigating this CSS issue

CSSRelated to CSS.Related to CSS.

TurbopackRelated to Turbopack with Next.js.Related to Turbopack with Next.js.

Status: Open.

Bug

#88604 In vercel/next.js;

· GlebKodrik opened on Jan 15, 2026

Turbopack sourcemaps showing wrong filename related to css

CSSRelated to CSS.Related to CSS.

TurbopackRelated to Turbopack with Next.js.Related to Turbopack with Next.js.

Status: Open.

Bug

#88294 In vercel/next.js;

· Xanaado opened on Jan 8, 2026

Multiple inheritance via CSS module composes only one level deep

CSSRelated to CSS.Related to CSS.

Status: Open.

Bug

#88258 In vercel/next.js;

· narkowicz opened on Jan 8, 2026

Global CSS file having hot reload issue in new NextJS update - 16.1.1

CSSRelated to CSS.Related to CSS.

linear: turbopackConfirmed issue that is tracked by the Turbopack team.Confirmed issue that is tracked by the Turbopack team.

TurbopackRelated to Turbopack with Next.js.Related to Turbopack with Next.js.

Status: Open.

Bug

#87884 In vercel/next.js;

· tanishqkrk opened on Dec 29, 2025