Edit 1 to 1 relation in FIlament not working

I have a hasOne relation of the user model to the UserMeta model. The metadata is stored on one row in the database, with column user_id and the rest columns for the other data.

I have created a Filament relation manager and I can render the data in the View User and Edit User pages.

However, when in the user edit page, if I want to edit the meta data and click the edit button, it starts loading but no form modal is shown.

This is my code:

// User model
public function meta(): HasOne
    {
        return $this->hasOne(UserMeta::class);

    }

// UserMeta model
public function user(): BelongsTo
    {

        return $this->belongsTo(User::class);
    }

// The relationship manager

protected static string $relationship = 'meta';

    public function form(Form $form): Form
    {
        return $form
            ->schema([
                TextInput::make('github')
                    ->required()
                    ->maxLength(255),
            ]);
    }

    public function table(Table $table): Table
    {
        return $table
            ->recordTitleAttribute('user_id')
            ->columns([
                TextColumn::make('github'),
                TextColumn::make('linkedin'),
                TextColumn::make('facebook'),
                TextColumn::make('twitter'),
                TextColumn::make('snapchat'),
                TextColumn::make('skype'),
            ])
            ->actions([
                Tables\Actions\EditAction::make(),
            ]);
    }

I think the problem may come from recordTitleAttribute but I am unsure.

Any ideas on how to solve this?