Hello to the community.

i have a problem when i try to edit data.pack for WH2.

for some reason the game dont accept my edits. what i mean.
i mean when i change something from data.pack lets say i try to edit the undeath corruption for one skill from 5 to 10 or if i try to give more buffs in one spell or in one lord the game dont accept it.
how can be that? in data.pack they say 10(editing) but in game they say 5(normal).
how the game can have the normal value and statics when i have change it from data.pack?
first i was thinking it was because of another mods. so i de-activate all the mods. but still the game dont accept my edits even with out mods.
what i must to do in that case? the game have backup? and if yes where can i find where is the backup ?
im use packfilemanager 5.0. its not m first time who i try to edit the data.pack or something for total war.
first time i have that problem. so i need your help.
what i must do?
thanks.