Scheduled data refresh pulling incorrect data
I have a scheduled refresh, however, this has pulled incorrect data and not the metrics I specified. Does a scheduled refresh need to be resaved each time you adjust the metrics? e.g. I pulled Facebook Impressions and saved this within the scheduled refresh. Later I want to pull Facebook Impressions AND Facebook Reach, so I run this and "apply changes". Do I then have to go back into the scheduled refresh and re-save, or no?
Also, when I manually refresh the data, why does it sometimes show 1, 2, or 3 "subqueries" being ran as well?