Some more stabs in the dark:
This error text does not appear in the app, so I am going to point the finger at the Kio graph block, because it does not match any AI2 list block complaint I have ever seen before.
I assume the Kio blocks maintain their own internal lists, because their graphs extend across the Canvas and that graph block accepts two points at a time.
I notice there is an initialization call in
but it is not initialized in Screen init, so I suggest adding it:
That hardly makes sense, though, since the graph starts out okay.
Is it possible that the graph extension reaches an internal limit?
Based on the error message alone, I would switch to the AI2 list based graph component, with two input list Chartdata components.
Example:
(needs an extra chartData component, does not need normalization.)