NLog: Log.LogTrace does not write to log target.

Type : Bug NLog version: 4.5.0-beta08 Platform: NET Core 2.0 Problem:: Log.LogTrace( … does not write to log target. Expected: Log.LogTrace logs also into the log target. Other information:

• Did you checked the Internal log? Yes
• Are there any work arrounds? No using logTrace
• Is there a version in which it did worked? I don’t know
• Can you help us by writing an unit test? No, or I can trie in the case I found where

Details: Current NLog config

<logger name="*.RestProtocol.*" writeTo="file" levels="Trace,Debug,Info,Warn" />

We like to have the logger in each Controller. As a result we created a baseController like this.

 public class MyControllerBase : Controller
    {
        protected ILogger Log { get; set; }
        protected MyControllerBase(ILoggerFactory logger)
        {
            Log = logger.CreateLogger(GetType().FullName);
        }
    }

We are using the baseController like this (here with some test logs):

[Route("api/zip")]
 public class ValuesController : MyControllerBase
 {       
     public ValuesController(ILoggerFactory loggerFactory ) : base(loggerFactory)
     {                    
     }

     // GET api/values
     [HttpGet]
     public IEnumerable<string> Get()
     {
         
         Log.LogTrace("--------- MyTrace", null); // <-- Will never be in logfile. The others are inside the logfile.
         Log.LogDebug("--------- MyDebug");
         Log.LogInformation("--------- MyInfo");
         Log.LogWarning("---¨!------ MyWarning");
         return new string[] { "value1", "value2" };
     }
}

Startup:

public class Program
 {
     #region Methods
     public static IWebHost BuildWebHost(string[] args)
     {
         return WebHost.CreateDefaultBuilder(args)
             .UseNLog()
             .UseStartup<Startup>() // use NLog for DI Logger
             .Build();
     }
     public static void Main(string[] args)
     {
         NLog.Logger logger = NLogBuilder.ConfigureNLog("nlog.config").GetCurrentClassLogger();
         
         try
         {
             logger.Debug("Create Webhost");
             BuildWebHost(args).Run();
         }
         catch (Exception e)
         {
             logger.Error(e, "Stopped program because of exception");
             throw;
         }
     }

     #endregion
 }