Try to load this corrupted save file in any Fallout game with sfall v4.4.4 with or without any other mods.
The save itself was made on a version of F:Nevada with a mod installed. The mod added a fake perk to the perk selection list.
SLOT01.zip
Start a new game or load any working save and open the character sheet. We see fake perks there that shouldn't be.
If you try to load a corrupt save multiple times in a row, a fake perk will be added for each load attempt the next time you load or start a new game.