Oh lala! They are supposed to be parallel? 
It’s a bit curious because you seem to have a lot of overlap along the tracks - is there maybe not enough sideways?
Did you try exif grouping yet?
Oh and I just remember that sometimes it is necessary to delete all components in a case like this. RC likes to hold on to previous results as long as they are present in form of a component. But I would save the old components beforehand because after alignment there is no possibility for undoing.