EA patches to protect their revenue (Ultimate Team). Modders patch to protect your freedom (Career Mode). YouTube is just the middleman getting caught in the crossfire.
Often, the tool itself isn't broken. EA changes a single line of code in the locale.ini or the squads file encryption key. Because the game looks different to the editor, the editor's developer has to reverse-engineer the encryption again. This takes days or weeks. During that gap, every YouTube tutorial is a landmine.
To bypass common "patched" errors, use the following updated tools and steps: FIFA Editing Toolsuite (FET) 2.0: Use the updated FET 2.0 from FIFA Editing Toolsuite
The editor cannot read the game’s updated cache, meaning the profile for that specific game version is completely broken until developers release an update. How the Modding Community Responds to Patches
What are you seeing when you launch the tool?
Yes. Despite the frustration, the remains the most powerful free tool for PC players who want to: