Olymp Trade — Jumping trend line

One of the reasons I decided to open an account with Olymp Trade was that I read it has great tradign platform with powerful charting tools. I am a trader who believes that markets tend to trend, therefore pinpointing effectively an emerging trend on the chart is o[censored]tmost importance to me.

The thing is now when I access the platform, all seems to work well. I see the TA button with various categories. So I go to the drawing section and choose the "trend line" tool. Now, when I point and locate two points on the chart to form a trend line, it gets drawn. However, when I later try to drag one end of the line to another position, the whole line disappears or sometimes it jumps to another position. I mean its another end point is somewhere out of the visible part of the chart.