Nova Pivot Date fields not Displaying in Index

I updated to 3.30 Nova and noticed my implementation of a BelongsToMany is not properly displaying the date values in the index or edit mode. Hoping someone can point me in the right direction -- tried methods in the internet to resolve it.

Test Model File:

protected $dates = [
    'created_at',
    'updated_at',
    'due_date'

// 'test_user.invited_date' => 'datetime' ];

protected $casts = ['other_question_types' => 'boolean',
    'due_date' => 'date',

// 'test_user.invited_date' => 'date:Y-m-d' ];

public function user()
{
    return $this->belongsToMany(User::class,'test_user')->using(TestUser::class);
}

User Model File: protected $casts = [ 'email_verified_at' => 'datetime', // 'test_user.invited_date' => 'date:Y-m-d' ];

public function tests()
{
    return $this->belongsToMany(Test::class,'test_user')->withPivot(['invited_date']);
}

Test NOVA Resource: public function fields(Request $request) { return [ ID::make(__('ID'), 'id')->sortable(), BelongsToMany::make('User')->fields(new TestUserFields()), BelongsTo::make('Category')->rules('required')->withoutTrashed(), Text::make('Name'), Text::make('Description')->hideFromIndex(), Date::make('Due Date','due_date')->sortable(), Boolean::make('Other Question Types'),

    ];
}

User Nova Resource: BelongsToMany::make('Tests')->fields(new TestUserFields())

TestUsersFields Class:

public function __invoke()
{
    return [
        Date::make('Invited Date')->displayUsing(function(){
                return isset($this->pivot) ? \Carbon\Carbon::parse($this->pivot->invited_date)->format('M d, Y') : NULL;
            }),
        Date::make('Completed Date')->displayUsing(function(){
            return isset($this->pivot) ? \Carbon\Carbon::parse($this->pivot->completed_date)->format('M d, Y'): NULL;
        }),
    ];
}