When following the data-wrangling-with-mongodb-data blog:
https://blog.exploratory.io/data-wrangling-with-mongodb-data-73b3c3d3b2b8#.5pphy1p5n
on Exploratory Version:2.2.0.1_WIN, using local instance of mongoDB containing Restaurant data
In table view, running commands that add column(s) can result in table body and table column headings misaligning.
This happened when using mutate() when running through this blog post:
mutate(longitude = list_extract(address.coord, position = 1))
I think this fixes itself when the page is re-rendered (e.g. by navigating away from page and returning.)