I've been literally in the world of my next novel- a verse novel. One of the characters needed to be re-awakened and become part of the three dimensional action and not a part of the static background- well this led to repercussions because the main character showed a trait I didn't know that character had.
A bit like ripples on a mat- it affected to some degree the plot and other parts of the story needed adjusting.
But the good news is that the revision has made the novel so much stronger.
Now for the little tweaks before the novel goes back to my wonderful editor.