I will tell my story: I found a huge accounting error that allowed for several employees to embezzle funds. I disclosed it to the main stakeholders and some people went to jail. The accounting team still refused to acknowledge that the mistake was theirs, so I left on principle.

A few weeks later, I was talking to an old colleague and they revealed that the story that came from stakeholders was that the accounting team found the error, and I left in disgrace (despite that not being my department?).

So if you find an embarrassing mistake and you do not control the narrative, you have to proceed very carefully.