Point Groups remain grayed out

After processing my flight through processing steps 1 and 2, the point groups cannot be selected; they remain grayed out. What could be causing this error?
Thank you for your response.

Hi there

You will need to load the point cloud first. Tick that ‘Nuage de points’ box and the you can select desired group(s)

Thank you very much for your response.
Unfortunately, even when enabling the point cloud, the Point Groups option remains grayed out.

Capture d’écran 2023-06-29 070652

Finally, after restarting the program and reactivating the point cloud once again, my Point Groups became accessible. The mysteries of Pix4D…
Thanks for your help !