IIRC there are multiple layers of encryption, the scripts only decrypt the first layer.https://gist.github.com/MarioMasta64/9e27532dfc237c3106385cb18caa3771
This script have been able to decrypt TX since forever.
Here is another one: https://gist.github.com/hexkyz/f9425a34057d17bba98a048f78d8711e