You don't turn on the H of LF!
Step 1 is RF back TH (down), and the turn commences on the RF with CBM.
Step 2 has the H of LF drawn back to RF (as a normal backward walk), bringing the feet together, and only then the rise is taken onto both Toes, and the turn completed.
Step 3 has position held, but there has been no change weight, so the next step is LF back.