ArcCross crashes when exporting

[LenyLenard]

I open Smash Ultimate's data.arc I go to root>fighter>Pikachu. I press extract after right-clicking and it starts extracting the files into the root folder. After a couple of seconds, ArcCross closes itself (nowhere to be found in the task manager either) and when I go look into the root folder inside of ArcCross, it shows only a small portion of files. Sometimes it manages to extract more files or fewer files every time I try. The first time I exported the exact same files, it worked just fine. I wanted to extract these files after I messed up something and nothing wants to work. Can anyone help me?