Hi Maria,
I thought it was resolved, because an email I sent to a sub-list and to my main Active list went out properly, but the last 2 to my main Active list have not gone out properly.
Are you a free user? If so, HubSpot has said there’s nothing they can (or will) do to resolve this. If you’re paid user, contact support and tell them to fix it for you.
Good luck,
Melissa