I don't think its a bug either, it seems intended.
Anyway for my second playthrough I'll be installing a whole load of mods including 20 levels and changed XP tiers, so meh I'll do 12 sorc / 2 wizard / 2 Warlock and whatever else it allows cos why not.
Good for you, if you want to make the game easier and that's what you need to do to enjoy yourself I couldn't care less.
I am a multiplayer focused GM for a multiplayer guild so I have to think in terms of fairness for everyone in the session. You don't have that responsibility. Do what you want, nobody cares.
As demonstrated though this is a massive exploit and one that needs to be fixed ASAP. It totally violates core rules of 5E.
Lol 'I am a GM for a single player game with no guilds but optional multiplayer' ... Imagine thinking that somehow matters.
5E is shit and I don't care about it or its pnp rules. Having said that there are 20 levels in pnp, so what does it matter if I try out the 20 levels mod (additional 8 levels only work for multiclassing).
Technically a 12 Sorc / 2 Wizard with sculpt spells would be possible in pnp too.
Let me tell you all about how you can play BG2 with 40 levels each in fighter, mage and thief on a triple class, who really cares when its someone's 100th playthrough?
Playing Solasta at the moment which also uses DnD 5e but proper (although the game has other problems). And let me tell you it is much better implemented. Quicken spell is only possible for a cantrip and Spell or two cantrips for example. So sorceres are not that OP. The encounters in Solasta are fun too althoug we do not have octopus powers and some OP classes.
