Saving results in creating hundreds of nulls?

[TIMOFEITV]

I was trying to mod Wii sports, I'm just replacing pictures and for some reason randomly (first time happened while trying to edit the UI) it's just created a bunch of nulls when I closed and saved? this increased the CARC file by 200/300 bytes. And when I try to delete them and save that just results in even more. And if it wasn't obvious, the game don't get past the main screen. this happens randomly i think. I'm new to the modding scene and need some help.

Steps to reproduce the behavior:

1. Edit and save any file.
2. Open the file again and get welcome to 50 to 100 nulls

i'll attach a picture but i don't think it will be necessary.

**Desktop

• OS: Windows 10
• Version v0.40a

No crash logs, since this isn't a crash.

If I need to provide any more information, please tell. I'm new to this kind of stuff and don't have much experience, I just watched a guide on YouTube. (following a guide on YouTube is foolish i know, guides on YouTube can be outdated)

I'll also attach the following file that I have the problem with

RPBowScene.zip

[Elip100]

I am having the same error with Wii Sports. I have found that it only occurs with files in the US folder; files in the Common and Stage folders are safe to edit. Also, I believe this happens with every version of BrawlCrate.