My flow contains validation errors, is it still able to accept calls?

Though not recommended, the FlowBuilder is designed to always accept calls, even when your flow contains validation errors. Please note that running flows with validation errors may lead to unexpected behaviour or can even cause your flow to break.

My flow is not working as I expected, how can I figure out what happened?

When you want so see exactly what happens while running your flow, you can enable debug mode. When debug mode is enabled, FlowBuilder will log the exact route taken inside your flow for the last 5 calls, including detailed logging of what happened inside each block. For more info on how debug mode works, please refer to the Debugging your flow article.