When playing regular dialogue with Consequence, Consequence manages the timing of the subtitles and audio. But when playing dialogue using Sequencer, for instance in cinematics, Sequencer controls the timing of audio and subtitles.
For that reason, when using Sequencer to trigger dialogue, developers should follow these steps:
Consequence's user interface inside Sequencer also allows you to add audio at the same time that you add Consequence Line sections for subtitles. If audio is added later in the project, it's also possible to retroactively add audio that matches the timing of Consequence Line sections already present in the level sequence.