[XDJ-RR] Tempo changes not responding on screen

Hello,

When I increase or decrease the TEMPO of a song via the fader(s) of my XDJ RR, the tempo increase and decrease "by ear" (so that is ok), but on the screen the waveform no longer stretches or compresses as before.
I just updated the Firmware (to 1.03), but that doesn't change anything.

Do you know what is the problem ?

Thank you

Français : Lorsque j'augmente ou diminue le TEMPO d'un morceau via le(s) fader de ma XDJ RR,
le tempo augmente et diminue "à l'oreille", mais à l’écran l'onde ne s’étire ou ne se compresse plus comme avant.
Je viens de mettre à jour le Firmware, mais cela ne change rien.