Hey, thanks for flagging this!

There's actually a temporary workaround in the meantime — if you tap the icon on the Jam Station it'll take you directly to the lesson, and the loop button is available there. Not as seamless as having it right on the Jam Station itself, but it should help keep your flow going while you practice.

We're also getting the devs to add the loop feature back to the Jam Station directly, so hang tight on that!