One scary thing I've noticed is that Google Translate has a new failure mode. While it used to return obviously incomprehensible gibberish when things went off

One scary thing I've noticed is that Google Translate has a new failure mode. While it used to return obviously incomprehensible gibberish when things went off the rails, it now sometimes returns something plausible but subtly incorrect. For example, it silently dropped the negation in a French -> English translation. Unfortunately, I can't remember the exact phrase but it was so semantically implausible--something like "regardless, we will be liable for any damages" that I went back and looked at the source text. It also sometimes replaces pronouns with oddly specific nouns: "He does X --> John does X" I assume these are both reflections of oddities in the training data.