Group Edit and Audio Warp not happening

Aren’t we supposed to be able to warp manually in Group Edit mode in Cubase 12? I just can’t get it to warp anything other than the first track in the list. You can see that just one of the waveforms shown in the sample editor is moving.

Anyone else finding this?

Just found out why! In the Sample Editor toolbar there is a drop-down called Clip Editing Mode. Make sure this is set to Edit All Clips. The icon will change to reflect this.