@cartern I have some named triggers with emoji in them that do get output, so I think Unicode shouldn't be the problem. Could you give me an example of the text you used?
When I create a named trigger with a random Chinese character, it does show up in Alfred, so I'm not sure what is going on, but the filtering is handled by Alfred, so if the data is passed correctly from the script filter, I don't think there's much I can do.