I actually have like 60 activated mods, including Prepare Carefully, and have a lil' problem when I want to create a character... When I open the list of Traits, the list stops in the middle (screenshot : https://ibb.co/1s908Tq ). I don't have any clue about which mode causes this, but maybe you'll get some seeing my mod list (I even put those I know they're not the problem's source) :
DE Surgeries ; Lolidrop's hairshop ; Gloomy Face/Hair/Furnitures ; A Dog Said... ; Camera Plus ; Children, School and Learning ; Dubs Bad Hygiene ; EdB Prepare Carefully (obviously) ; ED Embrasures ; Expanded Prosthetics and Organ Engineering ; Fashion RIMsta ; Gerrymon's Winter Hats (it doesn't really work so I'll deactivate it) ; Harmony ; Hospitality ; HugsLib ; JecsTools ; Kantai Collection Hair Styles ; Kemono Friends Hair ; Locks ; Mechalit Core/Equipment + Faction ; Mending and Recycle ; Misc Training ; More Detailed Body ; Prison Labor ; ResearchPal ; Resource Pack Core ; Rim Seraph Hair ; RimFridge ; Every Rimsenal mods ; Roppoi hair ; RPG Style Inventory ; Zipangu & Sengoku Period ; Show Hair with Hats ; Simple Sidearms ; Slave Outfits ; Sparkling World Full ; SS Lovely Hair Style ; Star Wars Slave Bikini Outfit ; Tilled Soil ; Touhou Hair ; Vegetable Garden ; VOCALOID Hair ; Wall Light ; Work Tab.

I hope you'll be able to help me.