I'd like to find standard retention (of users who signed up on day 0, how many came back on day 1, 2, 3... etc.) My problem seems to be related to the First App Open event tracked by Mixpanel. In the SIZE column it has the correct number, but the "Then came back and did (App Session)" is much lower than the actual number (see attached screenshot). I know it's off since we actually have returning users as shown in second screenshot. Thank you for any help.
Desired graph (but currently with little retention which must be false):
For reference retention of App Session -> App Session to indicate that the above must be wrong: