Scala logging is not working after Gatling.fromMap( statement -- please Help

I am using Gatling 3.3.1 with Scala 2.12.0 version.
I have a scenario where i am calling a method to verify some component functionality post “Gatling.fromMap(” statement .

I could see that the logic inside that method is executing as expected but no logger statements are saving in logfile / console .

object Engine extends StrictLogging with App { + " from Scala Engine.") – working
val rootPath = Paths.get(".", “target/classes/”).toAbsolutePath.toString()

val properties = new GatlingPropertiesBuilder()
.resultsDirectory(rootPath + “/results”)
Gatling.fromMap( + " from Scala Engine… END") – not working