If nothing was unclear or difficult, say so. Skip questions about steps you did not experience; use not applicable where appropriate.

Which issues, if any, did you encounter during the task?
Which issue most affected your next step?
Were two issues part of the same incident or separate experiences?
What issue category is missing or poorly described?

Author notes / illustrative keys where applicable:
1. Allow more than one issue and a none route without assuming difficulty.
2. Distinguish a primary concern from a list of all mentioned themes.
3. Avoid treating multiple mentions as independent people or incidents.
4. Check category meaning before coding free-text responses.