False errors in Blazor component in editor which disappear after invalidating caches and restarting Rider

JetBrains Rider 2024.2.2 on Windows 10
Blazor .NET 8 project

While I am editing a razor component, the editor suddenly shows many red underlines, indicating errors. The build window shows no errors. I can run the app. In order to get rid of the errors from editor, I need to reopen Rider. Reopening the component file or rebuilding the solution doesn't help.

The errors are of 3 types:
1. Ambiguous reference
2. Member with the same name is already declared (for variables/properties)
3. Member with the same signature is already declared (for methods)

Here is an example for the _query variable:

As you see, the two "ambiguous" references for _query are references to the same variable in the same file (or so it looks). 

I should mention that reopening Rider gets rid of the errors inside Editor. However, the status bar and the View>Tools>Problems window still show the same errors.

 For this to disappear it's necessary to invalidate caches and restart Rider.