Why would actual expenses for the month of March sho up as zero in the annual budget?
Sounds like somehow the formula is missing them in the Yearly Budget. Is it just specific actuals or are no actuals coming through for March 2023? The issue could be the way the dates are entered on the missing transactions in the Transactions sheet, a formula that has been modified in your copy of the Yearly Budget, or a Category that is marked at Hidden.
Are you sure the dates look correct in the Transactions sheet? Have you tried restoring the Yearly Budget?