Eagle-eyed “Saturday Night Live” fans immediately spotted something was amiss before the show’s musical guest Stevie Nicks’ second performance. After a landslide of internet comments, it turns out there was indeed a technical issue that was resolved quickly.

The seemingly smooth episode for the 50th anniversary season (which featured Oasis impersonations and a fantastic monologue from host Ariana Grande) hit a speed bump right before Grande was set to re-introduce Nicks for her next song. The issue caused the show to put up a Nicks billboard for around 50 seconds while the emergency was attended to and then leapfrogged into an ad break.

When things were fixed, Grande appeared and introduced the legend again. Shortly after the iconic guitar intro from “Edge of Seventeen” begins, you can see Nick fiddling with her mic pack on her right side, but ultimately didn’t affect the singer’s performance.

This was not...