trend line disappears

 
I draw a trend line and when I change the timeframe disappears  why?
 
whaproforex:
I draw a trend line and when I change the timeframe disappears  why?
Hand drawn or with an indicator/EA? Is it possible changing timeframe simply shifts the view, moving your trend line out of view?
 
whaproforex:
I draw a trend line and when I change the timeframe disappears  why?
 
Hyy nice and slow 
 
whaproforex: I draw a trend line and when I change the timeframe disappears  why?

You have an indicator or EA that is calling ObjectsDeleteAll (or equivalent.) They should only delete what they put on the chart.

Reason: