"I do not drink coffee before lunch."
Translation:Nie piję kawy przed obiadem.
This is a copy of my answer: nie piję kawy przed obiadem. OK, so I don't type with capitals - quicker. But is that now counted as wrong? I honestly can't see any difference between my answer and the given answer, apart from the lack of a first capital letter. Am I missing something?
No, I do not think that anything has changed - neither capitalization nor interpunction matters for the algorithm. Unless I'm unaware of something. So I suspect some bug, there's rarely a day for me without reading a comment like yours. Clearly the engine doesn't work perfectly and from time to time it rejects a correct answer.