Can we access your project?
Current Behavior
When starting a Test Mode session, the screen stays completely blank/white — no splash screen, no loading spinner, nothing ever renders. This happens immediately and consistently, and is not specific to any particular page in the app.
The browser console shows a failed resource request to FlutterFlow's own Test Mode server, e.g.:
Failed to load resource: the server responded with a status of 504 () — tm-prod.dreamflow.cl.../run
On a separate attempt, the same request failed with a 409 instead:
Failed to load resource: the server responded with a status of 409 () — tm-prod.dreamflow.cl.../run
This has been reproduced:
Across multiple full Stop/Restart cycles of the Test session
On two separate computers
In Chrome, after fully clearing cache and browsing history
The FlutterFlow builder's own "Issues" panel shows 0 errors (only pre-existing warnings unrelated to this: nested scrollables, a nullable App State variable, and permissive Firestore rules)
Notably, Run/Preview mode (the eye icon) loads the app correctly — the app displays and functions as expected there. The failure appears isolated to Test Mode specifically.
Expected Behavior
Test Mode should load the app normally, the same way Run/Preview mode does, without any server errors.
Steps to Reproduce
Open the project in FlutterFlow.
Click the "Test" button to start a Test Mode session.
Wait for the session to initialize.
Observe: the screen stays completely blank/white — nothing ever renders.
Open the browser console (F12 → Console tab).
Observe a failed request to FlutterFlow's own server (tm-prod.dreamflow.cl.../run), returning either a 504 or 409 status depending on the attempt.
Fully stop the session and retry — the failure recurs, sometimes with a different HTTP status code each time.
Switch to Run/Preview mode instead (eye icon) — the app loads and functions correctly.
Reproducible from Blank
Bug Report Code (Required)
IT4sl8n18ZNPm+kF+Kr+bsBB/CkvNjt/UOc4scsZbw4bB4zqPLJ/e/fSXxZBUtPiSmlhHFejgnIx08LzkoTtVvkCFw2CGIh6/7pcZQyUd3q8RYyKEZCJPEZ7O+dVIW6g17eJoQklVcpaLVIm1EyYIvC9QgLsJ5+/Zwh9f6PHaOI=
Visual documentation
Environment
- FlutterFlow version: v7.0.65 Releases july 30,2026, 3.38.6
- Platform:Web
- Browser name and version:Chrome 150.0.7871.187
- Operating system and version affected: Windows, reproduced on two separate computers
Additional Information
Not project-specific — likely a FlutterFlow platform/infrastructure issue given it's isolated to Test Mode's own backend server rather than anything in the project's code, App State, or Firestore rules.
Can we access your project?
Current Behavior
When starting a Test Mode session, the screen stays completely blank/white — no splash screen, no loading spinner, nothing ever renders. This happens immediately and consistently, and is not specific to any particular page in the app.
The browser console shows a failed resource request to FlutterFlow's own Test Mode server, e.g.:
Failed to load resource: the server responded with a status of 504 () — tm-prod.dreamflow.cl.../run
On a separate attempt, the same request failed with a 409 instead:
Failed to load resource: the server responded with a status of 409 () — tm-prod.dreamflow.cl.../run
This has been reproduced:
Across multiple full Stop/Restart cycles of the Test session
On two separate computers
In Chrome, after fully clearing cache and browsing history
The FlutterFlow builder's own "Issues" panel shows 0 errors (only pre-existing warnings unrelated to this: nested scrollables, a nullable App State variable, and permissive Firestore rules)
Notably, Run/Preview mode (the eye icon) loads the app correctly — the app displays and functions as expected there. The failure appears isolated to Test Mode specifically.
Expected Behavior
Test Mode should load the app normally, the same way Run/Preview mode does, without any server errors.
Steps to Reproduce
Open the project in FlutterFlow.
Click the "Test" button to start a Test Mode session.
Wait for the session to initialize.
Observe: the screen stays completely blank/white — nothing ever renders.
Open the browser console (F12 → Console tab).
Observe a failed request to FlutterFlow's own server (tm-prod.dreamflow.cl.../run), returning either a 504 or 409 status depending on the attempt.
Fully stop the session and retry — the failure recurs, sometimes with a different HTTP status code each time.
Switch to Run/Preview mode instead (eye icon) — the app loads and functions correctly.
Reproducible from Blank
Bug Report Code (Required)
IT4sl8n18ZNPm+kF+Kr+bsBB/CkvNjt/UOc4scsZbw4bB4zqPLJ/e/fSXxZBUtPiSmlhHFejgnIx08LzkoTtVvkCFw2CGIh6/7pcZQyUd3q8RYyKEZCJPEZ7O+dVIW6g17eJoQklVcpaLVIm1EyYIvC9QgLsJ5+/Zwh9f6PHaOI=
Visual documentation
Environment
Additional Information
Not project-specific — likely a FlutterFlow platform/infrastructure issue given it's isolated to Test Mode's own backend server rather than anything in the project's code, App State, or Firestore rules.