Cannot get boolean to log correctly

Hey there,

I'm having a problem with a log script I'm writing. When displaying the coordinates of the player it works perfectly fine but now I also want to include a boolean to track if and when the player opens their map, Somehow however the changes do not make their way into the log. This is the script I wrote:

 public class Log : MonoBehaviour 
 {
     public TextWriter fs;
     public GameObject playerobject;
     public bool PositionLogging = true;
     bool is_logging = false;
     float deltaTime = 1f; // every 1s
     float timeToLog;
     bool mapShowing;
         
     void Start () 
     {
         playerobject = GameObject.Find ("RigidBodyFPSController");
         
         if (is_logging) return;
         if (!Directory.Exists(@".\logs"))
             Directory.CreateDirectory(@".\logs");
         
         var nameOfLogFile = (2+"")+ "_log.csv";
         
         this.fs = new StreamWriter(Path.Combine("./logs",nameOfLogFile), true){AutoFlush = true};
         this.fs.WriteLine("#Time is| " + System.DateTime.Now.ToLongTimeString() +" "+  System.DateTime.Now.ToLongDateString() );
         this.fs.WriteLine("#logged object is | " + this.name);
         this.fs.WriteLine("#Format is | time (sec since program start)|x|y|z| map showing");
         is_logging = true;
         bool mapShowing = false;
     }
     
     void Update()
     {
         if (!is_logging || Time.time < timeToLog || !PositionLogging)
             return;
         timeToLog = Time.time + deltaTime;
         if (Input.GetKeyDown ("m") || Input.GetButtonDown ("X-Key"))
             mapShowing = !mapShowing;
         fs.Write(String.Format("{0:0.0000000}|", Time.time));
         //foreach(ILoggable l in this.loggables) if(l.Logg()) fs.Write(l.ToLogg());
         fs.Write(mapShowing);
         fs.Write(Environment.NewLine);
     }
         
     
     private string LoggTransform (GameObject playerobject)
     {
         return String.Format("{0:0.0000}|{1:0.0000}|{2:0.0000}|{3:0}",
                              playerobject.transform.position.x,
                              playerobject.transform.position.y,
                              playerobject.transform.position.z,
                              mapShowing);
     }
 }

Here just as an example a log, during which I pressed the "m"/map-key at least 10 times...

Do you have any idea how I could fix this?

Thanks, Lukas