Chinese and fallbacks

We found an issue where a missing translation in Traditional Chinese was falling back to Simplified Chinese. TextMeshPro then reported missing glyphs and most the characters were replaced with spaces, leaving an unintelligable sentence behind. Are there other cases like this where it's grouped as the same language, but the writing is different so you'd never want this to fallback to the other Chinese, but instead to the default language (in my case, English)?

OK, yeah, that makes sense and thanks for fixing that. My point is still mostly valid, though - in the case of Chinese would it make sense to show Simplified Chinese characters to a Traditional Chinese reader and vise versa? The writing seems so different compared to, say Spanish ES/MX where most of the words are the same. Or English UK/US. Even the fonts have to be different for the two because the same glyphs have to be written differently in a lot of cases. I'm wondering if it isn't better to fallback to English? Not quite sure the right answer, I'm not a linguist...