(Responded) Lines in Chart gets vanished

I have drawn trendline like things in RVNL chart. Now that lines gets vanished. Many times I found that even through I drawn lines in certain charts it gets vanished automatically.

Hi @ruby619,

Please confirm whether you have clicked “Save Layout” to save your drawings, or if you are using the same layout in multiple tabs so we can review your specific scenario.

I didn’t click save layout. Is it required to save trendlines