If my Capital One HYSA says my APY is 3%, why am I not earning that monthly?

Will add photo in the comments. I had a HYSA with Discover for several years, and it recently transitioned to Capital One. Within the app, it shows that the APY is 3%, and I’ve had a ~$51k balance in there most of the year. The monthly interest payouts have been decreasing, and I’m not sure why this is the case. Can someone explain what might be going on here? The most recent June interest is closer to 1% APY it seems.

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