Discrepancy in Retention Report User Count: Need Help!

Hello everyone, I have a problem reading the data from the retention report. I created a cohort report with two events, and the total number of users is 124. But when I go to the retention report to analyze the same metrics over the same time period, the total number of users is different. Even when I use the filter for users in that cohort, a higher number of users is shown. How is that possible? Really appreciate if anyone can help me with this! ❤️