I was testing a piece of code to draw segments in the future with this code (Dax, Daily TF) using DateToBarIndex:

GG      = 6
MyDay   = OpenDay
MyMonth = OpenMonth
MyYear  = OpenYear
DayMax  = 31
TestX    = 1
MyGG    = GG
WHILE Test = 1
   IF MyMonth = 4 OR MyMonth = 6 OR MyMonth = 9 OR Month = 11 THEN
      DayMax = 30
   ELSIF MyMonth = 2 THEN
      DayMax = 28
      IF Year MOD 4 = 0 THEN
         IF Year MOD 100 = 0 THEN
            IF Year MOD 400 = 0 THEN
               DayMax = 29
            ENDIF
         ELSE
            DayMax = 29
         ENDIF
      ENDIF
   ENDIF
   MyDay = MyDay + MyGG
   IF MyDay <= DayMax THEN
      Test = 0
   ELSE
      MyDay   = MyDay - DayMax
      MyMonth = MyMonth + 1
      IF MyMonth = 13 THEN
         MyMonth = 1
         MyYear  = MyYear + 1
      ENDIF
      DayMax = 31
      MyGG   = 0
   ENDIF
WEND
MyDate = (MyYear * 10000) + (MyMonth * 100) + MyDay
DRAWSEGMENT(barindex,high,DateToBarIndex(MyDate),high)
RETURN

at line it only accepts, as an offset into the future, from 2 to 31 days, otherwise an error is reported as from attached pics (Draw1 is correct, with 31, while Draw2 returned an error as soon as I incremented the variable to 32).

Is this a limit or a bug?

Making it a strategy and GRAPHing all variables, the future dates calculated are GRAPHed correctly, so there should be no error in the calculation code.

Draw1.jpg Draw2.jpg