Navigation to HomePage causes RangeError (-1) and minified runtime exception in FlutterFlow

[sean08062009-ux]

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• I give permission for members of the FlutterFlow team to access and test my project for the sole purpose of investigating this issue.

Current Behavior

When navigating to the TrackerQuestionnaire page, the app immediately throws a runtime error:

RangeError (index): Invalid value: Not greater than or equal to 0: -1

In Run Mode, the app also throws:
Instance of 'minified:hI'

This happens even after:

• Removing Firebase completely
• Setting index variables to 0
• Ensuring no lists or PageViews use negative indexes
• Rebuilding the page structure
• Testing in Test Mode and Run Mode

The error references:
tracker_questionnaire_model.dart.lib.js
HomePageWidget

The app crashes and cannot proceed.

Expected Behavior

The TrackerQuestionnaire page should load normally without throwing a RangeError or minified runtime exception. Navigation from Onboarding → TrackerQuestionnaire should work without any crashes, and PageView controllers should initialize with valid indexes (0 or higher).

Steps to Reproduce

1. Open the app in FlutterFlow.
2. Navigate from the Onboarding page to any other page (for example: TrackerQuestionnaire, RiseJournal, or Mood & Trauma Tracker).
3. From that page, navigate to the HomePage.
4. Immediately after navigation, the app throws:
   • RangeError (index): Invalid value: Not greater than or equal to 0: -1
   • In Run Mode: Instance of 'minified:hI'
5. The crash happens consistently from ANY page → HomePage, except when navigating directly from Onboarding.
6. The error persists even after:
   • Removing Firebase
   • Setting index variables to 0
   • Ensuring no PageViews or lists use negative indexes
   • Rebuilding the page structure
   • Testing in Test Mode and Run Mode

Reproducible from Blank

• The steps to reproduce above start from a blank project.

Bug Report Code (Required)

RangeError (index): Invalid value: Not greater than or equal to 0: -1 Another exception was thrown: Instance of 'minified:hI' Error source: tracker_questionnaire_model.dart.lib.js HomePageWidget FlutterFlow runtime stack trace (Run Mode): Instance of 'minified:hI'

Visual documentation

Environment

- FlutterFlow version: v7.0.79
- Platform: Web
- Browser name and version:
- Operating system and version affected:

Additional Information

No response