CI4 Item attributes not working properly

[odiea]

The partial/datepicker_locale is now showing a starting date of 1899. It is also showing minutes.
view('partial/datepicker_locale', ['config' => '{ minView: 2, format: "'.($config['dateformat'] . '"}')]) Appears not to be working any longer as it did in Ci3. It shows the following error when trying to save a Date in the date format only.
CRITICAL - 2023-12-17 17:25:33 --> Call to a member function format() on null
in APPPATH\Models\Attribute.php on line 892.
1 APPPATH\Controllers\Items.php(766): App\Models\Attribute->save_value('12/17/2023', 31, 63, '214', 'DATE')
2 SYSTEMPATH\CodeIgniter.php(942): App\Controllers\Items->postSave(63)
3 SYSTEMPATH\CodeIgniter.php(502): CodeIgniter\CodeIgniter->runController(Object(App\Controllers\Items))
4 SYSTEMPATH\CodeIgniter.php(361): CodeIgniter\CodeIgniter->handleRequest(null, Object(Config\Cache), false)
5 FCPATH\index.php(79): CodeIgniter\CodeIgniter->run()

[jekkos]

Seems to work fine in dev version