Your own report suggests there is a difference. People aren’t answering your questions. You do not have their attention apparently.

The burden is on you to get your questions answered. Other people have other concerns. Like it or not, you have to do the work of getting these answers. You may need to have a conversation instead of a list of demands.

Perhaps try an email thread instead of a single monolithic email?

Open the thread with a single key question. Listen to their reply. Does your next question still pertain? Then ask it in your reply.

People are not vending machines that contain answers you must shake out of them. A proper relationship, even if just email, is still the best way to achieve your goals.

My two cents as a person who experienced such frustrations early in my career.