In the succession crisis finale, if choosing to marry Ignias, there appears to be a mistake with the arclent acceptance rewards based on the Final Ignias score if the final score is at 4 or 5-7. The acceptance appears to be typoed as -1 instead of +1
The arclent acceptance gain for Ignais's final score is
8+ -> +2
5-7 -> -1 (probably meant to be +1)
4 -> -1 (probably meant to be +1)
3 -> 0
2- -> -1
You can check for yourself in the code. Talking with Tyna in the castle on tile 016, 037 on tab 3