That is why coverage is planned as redundancy rather than as a shot list: one camera locked wide on the stage the whole night, whatever else is happening, so there is always something to cut back to.
Positions get walked before doors open, against the run of show rather than a shot list — where the light is, where the crowd will actually stand rather than where the plan says, which side the artist will face, where you can move without ending up in someone else's frame. Everything records to two cards at once, because a card failure on a night that happens once is not a technical problem, it is a lost job. On the night the operators are on the floor and in it, not behind a barrier, which is what makes the footage look like the room felt.