Cross head notes sustaining forever in musescore 4.

I have a piece i'm working on for an event with a vocal line. When regular note-heads are used there is no issue but notes with cross heads which i use to indicate speech instead of singing, the note becomes held for the rest of the song and creates nasty discords. Is anyone else having this issue? How do i fix it? I've tried on 2 separate laptops now (windows and mac). Also, this issue isn't isolated to this score, it has occurred in all pieces I've opened with cross note heads in vocal lines.