StackedAreaChart - Adding series causes chart to crash

[JoTrdl]

Bug summary

Adding new series to the data prop in the StackedAreaChart breaks it (but removing some series is OK).

Expected behavior

The chart should not break.

Actual behavior

polaris-stackedArea-crash.mp4

Steps to reproduce the problem

Here the codesandbox link: https://codesandbox.io/p/sandbox/modern-thunder-9fqny3

Solution

The exception happens at the test condition here
Adding this check solves the issue:

const dataIsValidForAnimation =
           !previousStackedValues ||
+          !previousStackedValues[index] ||
          data.length === previousStackedValues[index].length;