TypeScript language server fails to recognize new files and needs restart

Type: Bug

Since the last update(s) or so, the TypeScript language server fails to recognize or do any code completion on newly created (or copy-pasted) files, no matter if they are TS or TSX.

With TS files it fails to do code completion for any other code from my project (cannot find anything from my project to import when I do CTRL+SPACE).

For TSX files, it fails to recognize React and all I get is syntax errors for JSX code.

I have to manually restart the TS language server in order to fix this. That or wait ~5s.

Context:

• I am on the latest TS version 5.5.4
• I am working on a typical NextJS (14.2.5) project with shadcn-ui components.
  tsconfig is the nextj's default:

{
  "compilerOptions": {
    "lib": ["dom", "dom.iterable", "esnext"],
    "allowJs": true,
    "skipLibCheck": true,
    "strict": true,
    "noEmit": true,
    "esModuleInterop": true,
    "module": "esnext",
    "target": "ES2020",
    "moduleResolution": "bundler",
    "resolveJsonModule": true,
    "isolatedModules": true,
    "jsx": "preserve",
    "incremental": true,
    "plugins": [
      {
        "name": "next"
      }
    ],
    "paths": {
      "@/*": ["./*"]
    }
  },
  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
  "exclude": ["node_modules", ".next"]
}

VS Code version: Code 1.92.1 (Universal) (eaa41d57266683296de7d118f574d0c2652e1fc4, 2024-08-07T20:16:39.455Z)
OS version: Darwin arm64 23.5.0
Modes:

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vstes627:30244334
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vscod805cf:30301675
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py29gd2263:31024239
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pythonregdiag2:30936856
pythonmypyd1:30879173
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accentitlementsc:30995553
dsvsc016:30899300
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dsvsc018:30899302
cppperfnew:31000557
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pythonait:31006305
dsvsc021:30996838
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pythoncenvpt:31062603
a69g1124:31058053
dvdeprecation:31068756
dwnewjupytercf:31046870
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impr_priority:31102340
refactort:31108082
pythonrstrctxt:31112756
wkspc-onlycs-t:31111718
wkspc-ranged-t:31111713

報告された Next.js プロジェクト構成で、新しい TS ファイルと TSX ファイルを作成またはコピーして問題を再現し、その後、TypeScript 言語サーバーを再起動する前後で補完と React の認識をテストします。新しく作成されたファイルの言語サーバーでの処理を追跡します。完了の条件は、手動で再起動したり説明のつかない遅延が発生したりすることなく、プロジェクトの import、React、JSX が認識されることです。