Rime of the Frostmaiden NPC Bonuses

I'm working on setting up Rime of the Frostmaiden, and have been playing around with various tokens and whatnot.  I feel like spellcasting for almost every npc token that is part of the module is seeing their Attack Values and Save DC values doubled when being cast from the character sheet. This is the first module I've tried to run on Roll20, so I'm not sure if I'm not doing something right, or if there is something set up incorrectly with the formulas in the purchased module.

It's unusual that they're not using the npc templates for a start - can you mouse over the damage roll to see what the tooltip says? There's definitely something odd going on. What happens if you change the To Hit value for Eldritch Blast? You can try this with the Eldritch Blast one to get a bit more info on what the button is doing. With the token selected: &{template:default} @{selected|repeating_npcaction_$3_rollbase} See what pops up in chat.

Attached is what pops up when inputting the requested command: Did a bit of digging, and it looks like the values under "Attributes and Abilities" are doubled for Spell Attack Bonus and Spell Save DC This is showing up when you cast the spell and check the bonuses, looks like the bonuses are applying twice. Just a note, clicking on the attack "Eldritch Blast" under attacks works fine (As it's set up as a separate attack), the issue comes when trying to cast anything from the spell list

I have seen several NPC's that doubles the DC in the chat output of a spell. Certainly seems to be some sort of doubling issue in general with spell casting.

Yeah, interesting. It looks like it might be module-specific. There's a weird thing going on with the NPC sheets where @{pb} is actually tied to CR level. This doesn't affect anything in the repeating_npcaction section, because the +hit field is hard-coded. This in itself is potentially an issue - these stats are supposed to be de-linked for NPC's, and their bonuses all hard-coded. If the HP, AC, and general stats don't increase when you bump their CR, nothing else should be changing. Possibly worth bringing up in the 5e sheet thread. As you've dug up from the Attributes & Abilities page, these NPCs are doing the default sheet behaviour of adding the relevant spellcasting stat (@{charisma_mod} in this case) and the proficiency bonus (@{pb}) derived from the monster's CR level.... but then adding @{spell_attack_bonus} on top. The sheet doesn't usually do this, for obvious reasons: @{spell_attack_bonus} is just [[ @{charisma_mod} + @{pb} ]], you add one or the other, not both. Out of interest - what happens if you delete an offending spell, then drag a new copy in from the Compendium? I haven't been able to reproduce the behaviour you're seeing, so I'm assuming it's Frostmaiden-specific on these NPCs. Good detective work, by the way!

If this is consistent, it should absolutely be reported in a  Help Center Request  so that a patch can be made.

I've reported it, but more can't hurt.

Thanks for the suggestion, I submitted a Help Center Request as well.