If you notice the Channelytics stats for your channel do not match what is displayed in YouTube Studio, don't worry, this is not a bug!
The data displayed in YouTube Studio and Channelytics should never be directly compared. As such, do not expect them to match up exactly.
YouTube Studio provides authorized private data that can not be broadly collected and shared. As a creator, you are able to see your own specific metrics in YouTube Studio. Our Channelytics tool (Data Service) collects data by monitoring views gained via public sources. There is often a day or two delay in the exact view count but the overall trends are still beneficial.