Dropdown Filter error, removes letters when typing

Good morning Radzen friends.
I have the following problem with the dropdown filter.
When typing the word for the filter, the control eliminates letters, as if it were having a hard time loading the word.

It's strange since I have the same control in other projects and it works correctly, but in this new .Net 8 Blazor Server project I get this error. Any suggestions to review.

Thanks in advance

Radzen Combo Error

You can try different values for FilterDelay.

Friend, thank you very much for such a prompt response.

I really don't understand the suggestion you sent me.

I leave you part of the code so you can see my example

You might need to study more our demos to understand my reply.