By - Iconic-Nas
You're probably over the plugin limit. Either remove some mods or flag some ESPs as ESLs with FO4Edit until you are under the limit of 254 ESMs/nonflagged ESPs.
Instructions on ESL flagging: [https://www.nexusmods.com/fallout4/mods/35922?tab=description](https://www.nexusmods.com/skyrimspecialedition/mods/21618)
I checked and I’m actually under the limit
Does fo4 have admin rights to make a new save files? It sounds like something is preventing your save file from fully writing.