Hi, this has been happening for a few months now so I've had to rely on Google Analytics for sales data. When I go to Reports -> Sales -> Orders and filter my date range it will not show any info for entire days even though we'd have several orders on that day. At first it was just Saturdays but now it's Mondays, Tuesdays and other random days missing when I have sales data from that day in Sales -> Orders... Seems very strange. Looking for some insight.
Magento 18.104.22.168 store
Have you refresh statics for that.
hope it will help you.
if work then marks as a solution or give kudos.