This, but unironically.

When a law requires data to be retained for X time, risk-averse companies interpret this as an instruction to immediately delete said data as soon as time X passes, and use automated tools to this end. Sadly, these tools tend to be ad-hoc software written and maintained by internal teams, and thus about as buggy as you'd expect.

I've worked in such places, and - in addition to all the other issues - the continuous collective loss of corporate knowledge makes life pretty miserable.