Bodies move, but sketches don’t, when in group

On the iPad.
I have some bodies and some sketches. I grouped them. When I select the group and move it, the bodies move, but sketches are left behind.
I would expect the sketches to move as well.
This causes issues with me wanting sketches to remain aligned with bodies.
Note that these sketches were not used to generate the bodies. They are reference sketches, or I plan to use them later in the design process.