title: Blazor: The list of component records is not valid
body: <p>using Blazor dotnet core 3.1 and getting this error:</p>
  
  <pre><code>The list of component records is not valid
  </code></pre>
  
  <p>Found a bug report regarding this that was closed in december 2019:
  <a href="https://github.com/dotnet/aspnetcore/issues/14966" rel="noreferrer">https://github.com/dotnet/aspnetcore/issues/14966</a>
  <a href="https://i.stack.imgur.com/jRrhS.png" rel="noreferrer"><img src="https://i.stack.imgur.com/jRrhS.png" alt="enter image description here"></a>
  Don't see any reason for this error and hope there is a workaround (can not make this error each page call, it's just happening very rarely...).</p>
  
  <p>Does anybody has an idea / hint which could cause this?</p>
  
  <p>Thx!</p>