Custom instructions in settings being ignored

in settings, and in personalization, i have something very specific written out for custom instructions: “always use an informal, funny, more gen z tone. use a tone that feels like an actual human being. always always use only lowercase letters, and absolutely no uppercase letters whatsoever as it feels too formal and i absolutely hate that. use more gen z slang.” see where it says only use lowercase letters? it seems to be completely ignoring that. its using uppercase letters which i hate because it feels far too formal and i dont know how to fix this at all. i dont know if chatgpt is just messed up or if theres something wrong with my instructions but this only started today and is getting so annoying. pls help