Any ideas why my custom indicators are blank when I start the terminal in the morning? - page 4

[Stanislav Korotky]

I'm not using (and don't recommend to use) the standard library for indicator development (and overall), so I can't say how to fix it while keeping the lib involved, but the situation that the graphs become blank means that your code execution goes into one of the if-s with return(0). Just check this under debug or by logging and find out under which conditions your code erroneusly falls into this branch.