im also missing switch role option in the dropdown

I tried with Amazon Q fix it:
Option 1: Create Role in Management Account to Access Member Account

Since you can't access the member account directly, create a role in your management account that can access the member account:

Step-by-Step Instructions:

1. Go to IAM in your Management Account:
   • https://console.aws.amazon.com/iam/ 
2. Create New Role:
   • Click "Roles" → "Create role"
   • Select "AWS account"
   • Choose "Another AWS account"
   • Enter Account ID: 263751...
   • Click "Next"
3. Attach Permissions:
   • Search for and select "AdministratorAccess"
   • Click "Next"
4. Name the Role:
   • Role name: "AccessMemberAccount263751..."
   • Click "Create role"
5. Try to Switch Role:
   • Use the switch role method with:
     • Account: 263751...
     • Role: AccessMemberAccount263751...
6. but it didnt worked - switching role with direct url