Channel trendlines move

[Traders-Table]

Im using a tick chart and I place a channel, only to find that with each new candle it moves it slightly... so when a few candles have gone by it is completely wrong! Any idea if Im doing something wrong - or is this a bug?

 

[nooris]

Try anchoring the channel to fully formed candles and extending it. This works for me when using fibonnaci or Gann fans (which were giving me the same problem on regular bar charts).