Strangely enough, this was an isolated issue. Before this, the model would wrap certain text in quotation marks, which sometimes caused text that should have been marked as speech to be marked as actions instead. Unfortunately, I can’t provide an example right now, but the text appeared as a solid gray block (Action).
After this error, the subsequent request was processed normally, but as soon as it occurred, I decided to post about it here right away.
And, probably, this question should be asked in another thread, but still... It’s not a complicated question—have you considered supporting multilingualism, since you’re no longer tied to a single server?