Bolt is constantly evolving, and that means parts of our documentation can't keep up. We try to update the screenshots and instructions to be as current as possible, but on big tutorials like this one, we're sometimes falling behind.
This tutorial was written for Bolt v.1.0. Since then, here are some of the things that changed:
The On Timer Elapsed event unit got deprecated in Bolt v.1.4. This unit used to trigger after a set certain number of seconds had passed from either the entry of the current state or since the machine was enabled.
The new approach is to use either the On Enable or On Enter State event (depending on whether you're on a flow or state graph) combined with a Wait For Seconds unit, like so:
Make sure to check the Coroutine checkbox in these events to enable support for wait units. For more information, see the manual.
There appears to be an issue where these wait events may trigger the transition even after the parent state has exited. We are investigating.