An unanswered objection does not disappear when the meeting changes subjects.

Moving on is not the same as resolving. A concern raised and then passed over goes underground, where it becomes slow cooperation, thin enthusiasm, and a second conversation held afterwards among the people who were never answered. The agenda progressed and the disagreement did not. Meetings mistake the absence of further mention for agreement, because the alternative takes time nobody scheduled.

If you notice a point that went unanswered, come back to it before the end and say so plainly. And if the objection was yours, following it up in writing afterwards is fair rather than difficult.