Pact of the Tome not flagged as Warlock Spells

Hi, 
I’ve noticed something odd on the online character Sheet, where I’ve created a Warlock (2014) that has taken the, Pact Boon, “Pact of the Tome”. Where the first paragraph reads…

“Your patron gives you a grimoire called a Book of Shadows. When you gain this feature, choose three cantrips from any class’s spell list (the three needn’t be from the same list). While the book is on your person, you can cast those cantrips at will. They don’t count against your number of cantrips known. If they don’t appear on the warlock spell list, they are nonetheless warlock spells for you.”

But I’ve added to the character the magic item “Rod of the Pact Keeper, +1” (equipped & attuned), where the first paragraph reads…

“While holding this rod, you gain a +1 bonus to spell attack rolls and to the saving throw DCs of your warlock spells.”

However, the spell attacks and spell save DC for the spells picked for Pact of the Tome are not increased by this magic item, as if they are not “warlock spells for you”.

can you kindly take a look for me and make the necessary changes 

Many Thanks 

Carl

This bug has been present pretty much forever. I personally reported it back in...2020 I think? They've said it's not possible to fix under the current system, but hopefully the new version of the character builder they're working on won't have this problem.