Trying two write 5:4 eighths. Finale will not allow more than 4 eighths within a half note. Years ago, Finale would allow extra noteheads, and then you could use a tuplet tool to justify as 5:4 or 7:4, etc. Now Finale will not let you write the extra noteheads, and then it autofills the incorrect rests. I stopped upgrading my Finale for just these sorts of reasons. I'm back and it does not seem Finale has fixed these sorts of issues. Look to Notion or Dorico for solutions.