Scenario Steps show .temp.mjs instead of .ts for TypeScript include modules #5675

What are you trying to achieve?

Scenario Steps / failure output for actions called from TypeScript include modules (page objects, custom steps) should show the original .ts path, as the migration guide says:

Error stack traces point at .ts source lines, not transpiled output.

Related: #5362 (closed), #5403. Still reproduces on 4.0.8 and 4.1.0.

What do you get instead?

Test files show .ts correctly. Steps from included .ts files show deleted sibling .temp.mjs paths (and wrong line numbers):

✔ I.click("...") at Object.somePageMethod (file://./pages/home.page.18611.jdt12cwb.temp.mjs:80:11)
✖ I.click("missing") at Test.<anonymous> (./tests/home_test.ts:5:5)

Provide test source code if related

// pages/home.page.ts
const { I } = inject();
module.exports = {
  open() {
    I.amOnPage('/');
    I.click('this does not exist');
  },
};

// home_test.ts
Feature('temp paths');
Scenario('fail from page object', ({ homePage }) => {
  homePage.open();
});

Details

• CodeceptJS version: 4.0.8 (also verified still present in 4.1.0)
• NodeJS Version: 26.x
• Operating System: macOS
• playwright version: (Playwright helper; unrelated to the path bug)
• Configuration file:

exports.config = {
  tests: './tests/**/*.ts',
  helpers: { Playwright: { url: 'http://localhost', browser: 'chromium' } },
  include: { homePage: './pages/home.page.ts' },
  require: ['tsx/cjs'],
};