diff --git a/convert_to_osm_tags.ts b/convert_to_osm_tags.ts
index f09ca69..50f4e98 100644
--- a/convert_to_osm_tags.ts
+++ b/convert_to_osm_tags.ts
@@ -125,7 +125,7 @@ function writeFile(fileName: string, fileContent: any) {
  * @param boundingBoxCoordinates
  */
 function convertDataForIRVE(sourceFilePath: string, mapping: any, pointCounterMax: number, boundingBoxCoordinates: any) {
-    debugLog('convertDataForIRVE from ', sourceFilePath)
+    debugLog('convert data: source file from :', sourceFilePath)
 
     fs.readFile(sourceFilePath, 'utf8', function (err, data) {
         let point_counter = 0
diff --git a/mappings/converters/configTest.ts b/mappings/converters/configTest.ts
index 7c0da43..5a3bf04 100644
--- a/mappings/converters/configTest.ts
+++ b/mappings/converters/configTest.ts
@@ -6,7 +6,7 @@
 import MappingConfigType from "../mapping-config.type";
 
 const MappingTest: MappingConfigType = {
-    config_name: 'testing config mappingSame',
+    config_name: 'testing config MappingTest',
     config_author: 'tykayn <contact@cipherbliss.com>',
     default_properties_of_point: {},
     tags: {
diff --git a/mappings/engine.ts b/mappings/engine.ts
index 053bb78..3a875b5 100644
--- a/mappings/engine.ts
+++ b/mappings/engine.ts
@@ -114,6 +114,7 @@ export default class {
         featurePointPropertiesKeys.forEach(pointKeyName => {
 
             debugLog('mapElementFromConf: convert', pointKeyName)
+            debugLog('mapElementFromConf: mapping keys:', mappingKeys)
             this.convertProperty(pointKeyName, mappingKeys, featurePoint, newProperties)
 
         })
@@ -135,7 +136,7 @@ export default class {
         let originalValue = featurePoint.properties[pointKeyName]
         let mappingValueObject: any = '';
 
-        if (mappingKeys.indexOf(pointKeyName) > 0) {
+        if (mappingKeys.indexOf(pointKeyName) !== -1) {
             mappingValueObject = this.mapping_config.tags[pointKeyName]
             debugLog('convertProperty: mappingValueObject ', mappingValueObject)
         }
@@ -147,13 +148,14 @@ export default class {
             /**
              * add all unmapped tags is enabled
              */
+            debugLog(' ------ add all unmapped tags is enabled')
             newProperties[pointKeyName] = originalValue;
 
         } else {
             /**
              * only use existing keys
              */
-            if (mappingKeys.indexOf(pointKeyName) > 0) {
+            if (mappingKeys.indexOf(pointKeyName) !== -1) {
                 let valueConvertedFromMapping = featurePoint.properties[pointKeyName]
                 let keyConvertedFromMapping = mappingKeys[mappingKeys.indexOf(pointKeyName)]
                 let mappingConfigOfTag = this.mapping_config.tags[pointKeyName]
@@ -329,6 +331,8 @@ export default class {
                         newProperties[newKey] = convertedValue.trim()
                     }
                 }
+            }else{
+                debugLog('!!!!!! property not found in mappingKeys: ', pointKeyName)
             }
         }
 
diff --git a/mappings/utils.ts b/mappings/utils.ts
index 2fd973c..ffbe99f 100644
--- a/mappings/utils.ts
+++ b/mappings/utils.ts
@@ -12,7 +12,8 @@ let output_folder = 'output';
  */
 function debugLog(...args: any[]) {
     if (show_debug) {
-        console.log('### debug: ', ...args)
+        console.log('### debug: ',)
+        args.map((elem: any) => console.log(' ',elem))
     }
 }
 
diff --git a/output/my_converted_data_set.json b/output/my_converted_data_set.json
index ee3535c..149f6ab 100644
--- a/output/my_converted_data_set.json
+++ b/output/my_converted_data_set.json
@@ -10,7 +10,9 @@
           45.635079
         ]
       },
-      "properties": {}
+      "properties": {
+        "name": "Bob"
+      }
     }
   ]
 }
\ No newline at end of file