Daily Total Not Updating

I’ve been closely monitoring my daily earnings and noticed a consistent pattern that I’d like your help understanding.

Each morning, the previous day's GA4 sessions and earnings appear in my dashboard. However, as the day goes on, the session count for the previous day increases, but the total earnings for that day remain the same—they don’t reflect the updated session count.

I’ve attached two screenshots to illustrate this: one from the morning and one from later in the day. You’ll see that while the session count increases, the earnings stay the same.

This seems to happen every day. Could you help clarify what might be going on?

Thank you!

Melissa