NPC_EE VS EET_Tweaks

You might want to try NPC_EE for character tweaking. Lets you change classes, kits, and stats.

NPC EE: Equivalent in functionality to Level 1 NPCs and SCS’ NPC customization, this mod equips all joinable NPCs with an item which, when activated, allows you to change their class, kit, stats, and/or proficiencies.

I'd be willing to bet it was Lvl 1 NPCs, given that iirc it's supposed to de-level NPCs to let you reset their class/stats. I've been using NPC EE instead and it's been pretty foolproof, in my experience.

I'd recommend NPC EE in lieu of Lvl1 NPCs, personally.

EEkeeper hasn't been properly maintained for awhile and it may not be the most reliable method for a heavily modded install. Supposedly there can be issues with certain variables and effects not getting properly saved. Dual 2 kit works fine, or you can install the NPC EE mod and use one of the kit tomes for yourself - eg, cheat it into your inventory with this code: C:CreateItem("d5_ckit") and then use the item it spawns.

EET Tweaks: despite the name, compatible with non-EET games as well. Its XP caps and XP reductions (for quests, killing monsters, and lockpicking/spell-learning) are useful if you’re running a lot of quest mods: as overleveling can kill any semblance of challenge, reducing XP gain to something more sensible makes for a better experience. Also features “consistent NPC appearance” options for those appearing in more than one game (including for cameo NPCs). Components that some may consider slightly cheesy: “PnP spell scroll caster levels,” “disable hostile reaction after charm,” “import party items to SoA.” Also offers convenience tweaks such as a key ring and wand case.

I'm trying to use a mod to remove the level cap in BG1EE. I ran across https://github.com/K4thos/EET_Tweaks/releases/tag/v1.12 I'm not sure if it's current.

EET Tweaks - https://github.com/K4thos/EET_Tweaks/releases/tag/v1.12 - offers components for this. These component tweaks work on all games and do not require EET.