White triangle on the waveform?

Hi @Jean-Francois_Duguay, the is the Temporary Cue. It’s set by press the large Cue button on your hardware when the deck is paused. Pressing the Cue button on your hardware while the track is playing will allow you to jump to this temporary cue like you can with a Hot Cue.

On iOS, if you navigate to the djay Settings>Appearance and change the Start Cue Button to Set/Jump, you can remove the Temporary Cue by long pressing on the SET button.