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Mistakes in Earnings Dates in Factset Data

I have created a small pipeline that illustrates some inconsistencies in the asOfDate and the Publication Date. The asOfDate is supposed to be the first date that on which the earnings announcements affected the market, but you can see a number of mismatches in the attached notebook:

ATNM: publication date is 1 month after as of date
QEPM: publication date is 1 day after as of date
ADMP: publication date is 3 months after as of date
PVG: publication date is 3 days after as of date
etc.

If I want to conduct my analysis based on how the stock price reacts to the earnings announcement, the asOfDate plays a crucial role. Does anyone know what causes this problem?