I changed up some sprites on an actor and didn't like them so I copy pasted the sprites from the original actor back to the original sprites, fired the game up and spawned the actor.

The sprites were the same one that I didn't like even though the mod folder clearly has the original sprites.

I then proceeded to delete the entire mod, and replace it with a back-up I made of the original mod, fired the game up and the sprites hadn't changed.

I have no idea what's going on or what to do to fix this. Does anyone have any insight on the situation?