Hello, It looks like a bug recently happened in our game. The Spell DC/Attack roll values do not update when changing the proficiency/rank. For example, my character has a spell attack value of (charisma) + (proficiency Expert), which would be 4+12 = 16. This currently shows up correct on my spell list. If I update the proficiency to Master (or any other rank), the Spell Attack Roll value changes to 18, BUT the actual value used in the spell calculations remains at 16. If I change my charisma or add/subtract temp values, the spell calculations change correctly. It's ONLY when the proficiency that is not working properly. We can work around this issue, but it's rather annoying. From what I can tell, it's only affecting spells. This is a newer bug, as we did not have this issue before. I couldn't give you an exact time frame of when it started, though. Thanks you for looking into this.