datahub.spec.ts row action menu test times out intermittently while it waits for the start-session form #1907

In one of four local full runs of pnpm test:e2e, this test failed with a timeout. It passed in the other three full runs, and the complete datahub.spec.ts file then passed with --repeat-each 4 on the same tree.

Output

[chromium] › src/specs/datahub.spec.ts:118:3 › data hub › should open a subject from the list via the row action menu, landing on its record table

Test timeout of 30000ms exceeded.
Error: locator.waitFor: Test timeout of 30000ms exceeded.
  - waiting for getByTestId('start-session-form') to be visible

  123 |     const startSessionPage = await getPageModel('/session/start-session');
> 124 |     await startSessionPage.sessionForm.waitFor({ state: 'visible' });

The test did not get past its first step: the start-session form did not become visible in 30 seconds after navigation to /session/start-session.

Environment

• Local run with 2 workers (not CI), chromium project
• Linux 7.3.3-1-cachyos, Node v26.13.0, Playwright from the lockfile on the branch of feat: support date-time date fields and exclusive set options in form instruments #1904 (libui 6.20.0)

What is not known

• I do not have the trace or the error context of the failed run; a later run replaced them.
• I do not know if the page was slow to load or if the session or first-run state was not ready. Other specs open the same page with the same call and did not fail.

Found while preparing #1904.