The Budget Summary Balance Column does not add up

I created a new budget for 2023. I noticed that when "details" was selected, the sum of the category row did not add up to what's in the summary column. But when I chose "budget only" the summary column suddenly added up.

I made sure nothing was rolled over from the previous year, and "Balances" and "actuals" yielded a blank 2023 budget, showing that there aren't any hidden balances. Somehow, the summary column calculates additional balances. Any ideas on how to fix this?
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