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[Panic]: Panic when upgrading a simple demo project in tsParticles repository #8795

@matteobruni

Description

@matteobruni

Panic message

vite v8.0.1 building client environment for production...
✓ 819 modules transformed.
rendering chunks (327)...Rolldown panicked. This is a bug in Rolldown, not your code.

thread '<unnamed>' (14037582) panicked at crates/rolldown_utils/src/hash_placeholder.rs:56:38:
byte index 83 is not a char boundary; it is inside '' (bytes 81..84) of `import{Dt as e,Ot as t,Qt as n,Tt as r}from"./ColorUtils-!~{001}~.js";var i=`ア.イ.ウ.エ.オ.カ.キ.ク.ケ.コ.サ.シ.ス.セ.ソ.タ.チ.ツ.テ.ト.ナ.ニ.ヌ.ネ.ノ.ハ.ヒ.フ.ヘ.ホ.マ.ミ.ム.メ.モ.ヤ.ユ.ヨ.ラ.リ.ル.レ.ロ.ワ.ヲ`[...]
stack backtrace:
   0:        0x1360cea64 - _napi_register_module_v1
   1:        0x1360debc4 - _napi_register_module_v1
   2:        0x1360aec84 - _napi_register_module_v1
   3:        0x1360b7ea8 - _napi_register_module_v1
   4:        0x1360b7da8 - _napi_register_module_v1
   5:        0x1354ee048 - <unknown>
   6:        0x1360b82dc - _napi_register_module_v1
   7:        0x1360b7f54 - _napi_register_module_v1
   8:        0x1360b4210 - _napi_register_module_v1
   9:        0x1360a7768 - _napi_register_module_v1
  10:        0x13618dff0 - _napi_register_module_v1
  11:        0x1360e51f0 - _napi_register_module_v1
  12:        0x13618dab0 - _napi_register_module_v1
  13:        0x135bf1f80 - _blake3_compress_in_place_portable
  14:        0x135bf6420 - _blake3_compress_in_place_portable
  15:        0x135574864 - <unknown>
  16:        0x13564eee0 - <unknown>
  17:        0x13542c6d4 - <unknown>
  18:        0x13564efec - <unknown>
  19:        0x13542c6d4 - <unknown>
  20:        0x13564efec - <unknown>
  21:        0x13542c630 - <unknown>
  22:        0x13564efec - <unknown>
  23:        0x13542c630 - <unknown>
  24:        0x13564efec - <unknown>
  25:        0x13542c630 - <unknown>
  26:        0x13564efec - <unknown>
  27:        0x13542c630 - <unknown>
  28:        0x1356ad130 - <unknown>
  29:        0x136186960 - _napi_register_module_v1
  30:        0x136079894 - _napi_register_module_v1
  31:        0x13607b9a0 - _napi_register_module_v1
  32:        0x13607be34 - _napi_register_module_v1
  33:        0x1360b3a94 - _napi_register_module_v1
  34:        0x1946fbc08 - __pthread_cond_wait

Please report this issue at: https://github.com/rolldown/rolldown/issues/new?template=panic_report.yml

✗ Build failed in 224ms
error during build:
[Panic in async function                                                                                                                                                             
Error: Panic in async function] {                                                                                                                                                    
  code: 'GenericFailure'                                                                                                                                                             
}

Reproduction

Clone https://github.com/tsparticles/tsparticles/ (branch v4-rolldown-bug)
Launch "pnpm i" in the root folder
Launch "pnpm run slimbuild" in the root folder
Update Vite to latest version in demo/vite
Launch "pnpm i" (folder is not important, the monorepo will capture it anyway)
Launch "pnpm run build" in the demo/vite folder

System Info

System:
    OS: macOS 26.3.1
    CPU: (10) arm64 Apple M1 Max
    Memory: 95.72 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 24.14.0 - /Users/matteo/.nvm/versions/node/v24.14.0/bin/node
    npm: 11.9.0 - /Users/matteo/.nvm/versions/node/v24.14.0/bin/npm
    pnpm: 10.32.1 - /Users/matteo/Library/pnpm/pnpm
    bun: 0.1.10 - /Users/matteo/.bun/bin/bun
    Deno: 1.24.3 - /Users/matteo/.deno/bin/deno
  Browsers:
    Brave Browser: 125.1.66.115
    Chrome: 146.0.7680.80
    Edge: 146.0.3856.62
    Firefox: 138.0.1
    Safari: 26.3.1
    Safari Technology Preview: 26.0

Additional context

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