What happens when a promoted cell that makes a capturing move is at the king-row, and there are capturing moves available?
All capturing moves are compulsory (with the exception of your choice of which capturing sequence to take).

It is a special case that causes a pieces movement to end when it is promoted.

In your case, the piece was already promoted before re-entering the king-row as part of a capturing sequence. Its movement does not end and you must continue to make the available capturing moves.