Problem when adding Indicator to Template

Hey Guys,

short question: I've written a custom indicator (see below) just drawing 3 trendlines. Everything works just fine. However, when adding the indicator to my template and apllying this template to a different currency pair the lines are not drawn. Then, when i open the indicator list clicking edit on my custom indicator and ok the lines are drawn -.- Any ideas? Thanks in advance :)

EDIT: It might have something to do with my check variable? Like it is still set to true when loading the template or something like this? No idea ...

#property indicator_chart_window
//--- input parameters
extern int       DaysOfInterest=1;
extern color     LineColorHigh=DarkBlue,LineColorLow=Red, LineColorOpen=Green;
extern int       LineStyleHigh=1,LineStyleLow=1,LineStyleOpen=1,FontSize=10;

double           high,low,open;
datetime         time,timeToday,period;
int              ObjIdx;
string           ObjName,TextName;
int              TYPE_HIGH=0,TYPE_LOW=1,TYPE_OPEN=2;
bool             check=false;

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
//----
   
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
   for(int i=1;i<=ObjIdx;i++){
      ObjectDelete("Line"+DoubleToStr(i,0));
      ObjectDelete("HighLowText"+DoubleToStr(i,0));
   }
   check=false;
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   if(!check){
      period=iTime(Symbol(),Period(),0);
      for(int y=1;y<=DaysOfInterest;y++){   
         high = iHigh(Symbol(),PERIOD_D1,y);
         low = iLow(Symbol(),PERIOD_D1,y);
         open = iOpen(Symbol(),PERIOD_D1,y-1);
         time = iTime(Symbol(),PERIOD_D1,y);
         timeToday = iTime(Symbol(),PERIOD_D1,y-1);
         TrendLine(time,high,time+(60*PERIOD_D1*20),high,LineColorHigh,LineStyleHigh,TYPE_HIGH,y);
         TrendLine(time,low,time+(60*PERIOD_D1*20),low,LineColorLow,LineStyleLow,TYPE_LOW,y);
         TrendLine(timeToday,open,timeToday+(60*PERIOD_D1*21),open,LineColorOpen,LineStyleOpen,TYPE_OPEN,y);       
         check=true;
      }  
   }
   //new bar or new period - move text
   if(period!=iTime(Symbol(),Period(),0)){
      moveText();
      period=iTime(Symbol(),Period(),0);
   }
   
   return(0);
  }
//+------------------------------------------------------------------+
//| Draws a Trendline                                                |
//+------------------------------------------------------------------+
void TrendLine(datetime x1, double y1, datetime x2, double y2, color col, int style,int type, int day)
   {
   ObjIdx++;
   
   if(type==TYPE_HIGH){
      ObjName="Line" + DoubleToStr(ObjIdx,0);
      TextName="HighLowText"+DoubleToStr(ObjIdx,0);   
      ObjectCreate(ObjName, OBJ_TREND, 0, x1, y1, x2, y2);
      ObjectSet(ObjName,OBJPROP_COLOR,col);
      ObjectSet(ObjName,OBJPROP_RAY,0);    
      ObjectSet(ObjName,OBJPROP_STYLE,style);
      ObjectCreate(TextName,OBJ_TEXT,0,iTime(Symbol(),Period(),0)+(150*Period()),y1,iTime(Symbol(),Period(),0)+(150*Period()),y1);
      ObjectSetText(TextName,StringConcatenate("High (-",day,")"),FontSize,"Arial",Black);
      
      }
   if(type==TYPE_LOW){
      ObjName="Line" + DoubleToStr(ObjIdx,0);
      TextName="HighLowText"+DoubleToStr(ObjIdx,0);   
      ObjectCreate(ObjName, OBJ_TREND, 0, x1, y1, x2, y2);
      ObjectSet(ObjName,OBJPROP_COLOR,col);
      ObjectSet(ObjName,OBJPROP_RAY,0);    
      ObjectSet(ObjName,OBJPROP_STYLE,style);
      ObjectCreate(TextName,OBJ_TEXT,0,iTime(Symbol(),Period(),0)+(150*Period()),y1,iTime(Symbol(),Period(),0)+(150*Period()),y1);
      ObjectSetText(TextName,StringConcatenate("Low (-",day,")"),FontSize,"Arial",Black);
     
      }
   if(type==TYPE_OPEN){
      ObjName="Line" + DoubleToStr(ObjIdx,0);
      TextName="HighLowText"+DoubleToStr(ObjIdx,0);   
      ObjectCreate(ObjName, OBJ_TREND, 0, x1, y1, x2, y2);
      ObjectSet(ObjName,OBJPROP_COLOR,col);
      ObjectSet(ObjName,OBJPROP_RAY,0);    
      ObjectSet(ObjName,OBJPROP_STYLE,style);
      ObjectCreate(TextName,OBJ_TEXT,0,iTime(Symbol(),Period(),0)+(150*Period()),y1,iTime(Symbol(),Period(),0)+(150*Period()),y1);
      ObjectSetText(TextName,StringConcatenate("OOpen (-",day,")"),FontSize,"Arial",Black);
      
      }
 }
 
 void moveText()
  {
   for(int i=1;i<=ObjIdx;i++){
      ObjectSet("HighLowText"+DoubleToStr(i,0),OBJPROP_TIME1, iTime(Symbol(),Period(),0)+(150*Period()));
      ObjectSet("HighLowText"+DoubleToStr(i,0),OBJPROP_TIME2, iTime(Symbol(),Period(),0)+(150*Period()));
      
   }
   return(0);
  }