Program: 10471
Project: 10471
Buggy source:
@EventHandler public void chatTrigger(AsyncPlayerChatEvent event){
  dNPC npc=Utilities.getClosestNPC(event.getPlayer().getLocation(),2);
  if (npc == null)   return;
  if (!npc.getCitizen().hasTrait(TriggerTrait.class))   return;
  if (!npc.getCitizen().getTrait(TriggerTrait.class).isEnabled(name))   return;
  if (Settings.CheckLineOfSightWhenChatting())   if (!npc.getEntity().hasLineOfSight(event.getPlayer()))   return;
  if (Settings.ChatOnlyWhenLookingAtNPC())   if (!Utilities.isFacingEntity(event.getPlayer(),npc.getEntity(),45))   return;
  if (!npc.getTriggerTrait().trigger(this,event.getPlayer())) {
    if (Settings.ChatGloballyIfNotInteractable()) {
      dB.echoDebug(ChatColor.YELLOW + "String_Node_Str" + ChatColor.WHITE+ "String_Node_Str");
      return;
    }
 else {
      event.setCancelled(true);
      Utilities.talkToNPC(event.getMessage(),event.getPlayer(),npc,Settings.PlayerChatToNpcBystandersRange());
    }
  }
  InteractScriptContainer script=npc.getInteractScript(event.getPlayer(),this.getClass());
  String id=null;
  boolean matched=false;
  String replacementText=null;
  String regexId=null;
  String regexMessage=null;
  Map<String,String> idMap=script.getIdMapFor(this.getClass(),event.getPlayer());
  if (!idMap.isEmpty())   for (  Map.Entry<String,String> entry : idMap.entrySet()) {
    Matcher matcher=triggerPattern.matcher(entry.getValue());
    while (matcher.find()) {
      if (!script.checkSpecificTriggerScriptRequirementsFor(this.getClass(),event.getPlayer(),npc,entry.getKey()))       continue;
      String keyword=matcher.group().replace("String_Node_Str","String_Node_Str");
      if (isKeywordRegex(keyword)) {
        Pattern pattern=Pattern.compile(keyword.substring(6));
        Matcher m=pattern.matcher(event.getMessage());
        if (m.find()) {
          regexId=entry.getKey();
          regexMessage=entry.getValue().replace("String_Node_Str" + keyword + "String_Node_Str",m.group());
        }
      }
 else       if (event.getMessage().toUpperCase().contains(keyword.toUpperCase())) {
        id=entry.getKey();
        replacementText=keyword;
        matched=true;
      }
    }
    if (matched)     break;
  }
  if (matched == false && regexId != null) {
    id=regexId;
    replacementText=regexMessage;
  }
  if (id != null) {
    event.setCancelled(true);
    Utilities.talkToNPC(replacementText,event.getPlayer(),npc,Settings.PlayerChatToNpcBystandersRange());
    parse(npc,event.getPlayer(),script,id);
  }
 else {
    if (!Settings.ChatGloballyIfFailedChatTriggers()) {
      event.setCancelled(true);
      dB.echoDebug(event.getPlayer().getName() + "String_Node_Str" + npc.getNicknameTrait().getNickname()+ "String_Node_Str"+ replacementText);
      return;
    }
  }
}

Fixed version (ground truth):
@EventHandler public void chatTrigger(AsyncPlayerChatEvent event){
  dNPC npc=Utilities.getClosestNPC(event.getPlayer().getLocation(),2);
  if (npc == null)   return;
  if (!npc.getCitizen().hasTrait(TriggerTrait.class))   return;
  if (!npc.getCitizen().getTrait(TriggerTrait.class).isEnabled(name))   return;
  if (Settings.CheckLineOfSightWhenChatting())   if (!npc.getEntity().hasLineOfSight(event.getPlayer()))   return;
  if (Settings.ChatOnlyWhenLookingAtNPC())   if (!Utilities.isFacingEntity(event.getPlayer(),npc.getEntity(),45))   return;
  if (!npc.getTriggerTrait().trigger(this,event.getPlayer())) {
    if (Settings.ChatGloballyIfNotInteractable()) {
      dB.echoDebug(ChatColor.YELLOW + "String_Node_Str" + ChatColor.WHITE+ "String_Node_Str");
      return;
    }
 else {
      event.setCancelled(true);
    }
  }
  InteractScriptContainer script=npc.getInteractScript(event.getPlayer(),this.getClass());
  String id=null;
  boolean matched=false;
  String replacementText=null;
  String regexId=null;
  String regexMessage=null;
  Map<String,String> idMap=script.getIdMapFor(this.getClass(),event.getPlayer());
  if (!idMap.isEmpty())   for (  Map.Entry<String,String> entry : idMap.entrySet()) {
    Matcher matcher=triggerPattern.matcher(entry.getValue());
    while (matcher.find()) {
      if (!script.checkSpecificTriggerScriptRequirementsFor(this.getClass(),event.getPlayer(),npc,entry.getKey()))       continue;
      String keyword=matcher.group().replace("String_Node_Str","String_Node_Str");
      if (isKeywordRegex(keyword)) {
        Pattern pattern=Pattern.compile(keyword.substring(6));
        Matcher m=pattern.matcher(event.getMessage());
        if (m.find()) {
          regexId=entry.getKey();
          regexMessage=entry.getValue().replace("String_Node_Str" + keyword + "String_Node_Str",m.group());
        }
      }
 else       if (event.getMessage().toUpperCase().contains(keyword.toUpperCase())) {
        id=entry.getKey();
        replacementText=entry.getValue().replace("String_Node_Str","String_Node_Str");
        matched=true;
      }
    }
    if (matched)     break;
  }
  if (matched == false && regexId != null) {
    id=regexId;
    replacementText=regexMessage;
  }
  if (id != null) {
    event.setCancelled(true);
    Utilities.talkToNPC(replacementText,event.getPlayer(),npc,Settings.PlayerChatToNpcBystandersRange());
    parse(npc,event.getPlayer(),script,id);
  }
 else {
    if (!Settings.ChatGloballyIfFailedChatTriggers()) {
      event.setCancelled(true);
      dB.echoDebug(event.getPlayer().getName() + "String_Node_Str" + npc.getNicknameTrait().getNickname()+ "String_Node_Str"+ replacementText);
      return;
    }
  }
}