When I completed this step, the nodes of the package container hierarchy did not have checkboxes. Also, the Extract Sample Currency Data checkbox did not respond to my clicks.
There was a message to clear the parent, but since the parent had no checkbox, I was unable to do so.
Drilling down resulted in checkboxes that "appear dimmed" as in the note below.
This appears to be a bug or at least a lapse in the documentation.
EDIT: We found a work-around. You can highlight the checkbox and tick it with the spacebar - but you can't select it with the mouse.
On the Lesson 3 root node, under Select the logs to use for the container: I was able to select the checkbox.
When I navigate deeper though, this option is unchecked and muted or grayed out with a message at the bottom reading:
"⚠️ To configure unique logging options for this container, enable logging for it in the tree view."