NPC Spell Save DC and spell attack bonus not calculating correctly for DnD 5e NPC Character Sheet

I've been trying to add spells to a Strahd character and it doesn't seem to properly pulling the character information. I’ve tried changing the spellcasting ability and changing the CR which I saw were methods to try. I also manually went to the attributes and I’m able to get the Spell Save DC of 22 to come up, but in the spell description it still reads as “Spell Save DC: 0”. The Spell Attack is showing as NaN as well. Any ideas on how I can fix this? For additional context he is a 16th level spellcaster using Intelligence and his Spell Save DC is 22, +14 to hit with spell attacks.

I took a peek at this, but this bug is making investigation difficult, and may just be the culprit.

Thank you for taking a look. Hopefully it is just that bug and I can fix it once they come up with a solution.

After the team did some changes I was able to figure out why it was still not updating correctly on the character sheet. Spells that were already on the sheet when it was broken were still not calculating correctly, but when I added them back in it calculated correctly. As a tip for others as well the Spell Save DC takes CR into account when calculating the spell save DC and spell attack bonus. Thank you!