import 'package:flutter/material.dart';

void main() {
  runApp(BugReport());
}

class BugReport extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Directionality(
      textDirection: TextDirection.ltr,
      child: Material(
        child: IndexedStack(
          index: 0,
          children: [
            Ink(width: 100, height: 100, decoration: BoxDecoration(color: Colors.black)),
            Ink(width: 50, height: 50, decoration: BoxDecoration(color: Colors.red)),
          ],
        ),
      ),
    );
  }
}