Changes to your controller keybinds will be reset if you re-launch the game without having your controller turned on first. If you’ve re-launched the game and then turn on your controller afterwards (like at the character menu or in-world) the controller keybinds will reset to their default state.
Changes to your controller keybinds will remain if the controller is turned on & connected prior to launching the game.
Speaking of the default controller keybinds, they appear to have changed from this:
I’m not sure if this change was planned or if it’s a mistake.