Answer the turn that asked, and only one question a turn
Two ways the round could come apart, both found in review.
The resume took its target from the request, which defaults to the last
message on the client's path. Anything sent while a question was open
moved that, so the answer landed on a turn that never asked — and the
composer sitting right under the panel makes that easy to do. The record
already knows which turn parked the call, so it is read from there and
the request no longer decides.
A round parks on one prompt, so a second question asked beside it was
never shown and its call never got a result, which providers reject on
the next turn. One call carries up to four questions, so the extra call
is refused with that as the reason.