Adding the words "Later" at the transition on Page 16 would have done wonders........ I wonder if the artist and the editors really thought there was nothing confusing about that abrupt transition....
A note by the Scanlation team put in that whitespace could probably temper confusion and prevent allegations of missing a page (despite the transition happening at the bottom of page 16 and showing that this was what the artist intended).... but its not your guy's fault the manga did a poor and confusing transition like this.
EDIT: Also, has she always been able to transform into Wolf form? I don't remember and don't have the time right now to re-read.