Scrollbar Assertion Failed on clicking dropdown about dropdown_button2

[AhmedLSayed9]

I've tried to produce the issue with Web (Chrome) but I couldn't. Your sample miss some parameters/functions so I couldn't fully tested it. Can you test the below sample and check if you still get the issue? If not, Please provide a full sample code.

final List<String> items = [
    'Item1',
    'Item2',
    'Item3',
    'Item4',
    'Item5',
    'Item6',
    'Item7',
    'Item8',
  ];
  String? selectedValue;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            const Text(
              'You have pushed the button this many times:',
            ),
            Text(
              'counter',
              style: Theme.of(context).textTheme.headline4,
            ),
            DropdownButtonHideUnderline(
              child: DropdownButton2(
                items: items
                    .map((item) => DropdownMenuItem<String>(
                          value: item,
                          child: Text(
                            item,
                            style: const TextStyle(
                              fontSize: 14,
                            ),
                          ),
                        ))
                    .toList(),
                value: selectedValue,
                onChanged: (value) {
                  setState(() {
                    selectedValue = value as String;
                  });
                },
                isExpanded: true,
                buttonDecoration: BoxDecoration(
                  borderRadius: BorderRadius.circular(15),
                  border: Border.all(
                    color: Colors.grey,
                  ),
                ),
                dropdownDecoration: BoxDecoration(
                  borderRadius: BorderRadius.circular(15),
                  border: Border.all(
                    color: Colors.grey,
                  ),
                ),
                buttonWidth: 300,
              ),
            ),
          ],
        ),
      ),
    );
  }

[AhmedLSayed9]

I'm closing this till new updates of the issue.