Corrective structures are tricky, the wave b emerged within a complex structure.
The map posted in 2018 appeared to be valid (see related) and I dropped it early.
This is a refreshed chart of the old map.
The wave B slighlty exceeded the top of wave A.
The wave C down could emerge in 5 waves down within the strong impulse or an ending diagonal.
Price could retest the valley of wave A in the area of $18.