I think it's just different censor training/algorithms. I have had it answer something in Chinese, then when I asked it to translate the answer to English it gave me a censor block. Mind you, I've not actually gotten a censorship message when it is generating chinese responses... But I have to assume they exist (not providing instructions for violence, self harm, etc ).
I don't remember exactly what it got stuck on, but I think it had something to do Xi Jinping or some basics of Marxism, but I was pretty sure it was a fairly mundane question. I pasted the chinese answer into Google translate, looking at the translating, and I remember thinking "that's very normal, why did this get sensored in English"