If you are using .NET MAUI Blazor together with MudBlazor and target iOS you might run into a problem #6310
Currently, the AOT compiler runs into issue. This is a known problem dotnet/maui#14271

The only available workaround is to set these options:

<PropertyGroup>
   <MtouchLink>None</MtouchLink>
   <UseInterpreter>True</UseInterpreter> 
</PropertyGroup>

This will stay open and pinned until AOT gets improved or Microsoft makes these options as default dotnet/maui#13019