What are some of the typical obstacles a technical writer encounters during the research stage of a document development life cycle?

This question may be asked as a follow-up to an earlier question. The interviewer will use follow-up questions to collect more information about the topic or explore it in more detail. They can also use follow-up questions to correlate your answers to ensure you are truthful and consistent. The best way to ensure consistency throughout the interview is to keep your answers brief and to the point and never fabricate an answer. If you don't know about the interviewer's topic, admit this and describe how you would locate the information. Your answer should focus on significant obstacles you can easily overcome, not trivial issues common to this profession.