Reproduce: https://stackblitz.com/edit/vitejs-vite-q3cget?file=package.json

When run pnpm run build (tsup src/main.ts --experimental-dts main --format esm), it works well. The generate result is:

But when run pnpm run build-with-clean (tsup src/main.ts --experimental-dts main --format esm --clean), it will not generate dts files. The generate result is: