"Internal Server Error" after newEntity()

[Fluit]

CakePHP: 4.1
cakephp-upload: 5.0.0 RC

in FotoTable I use
$this->addBehavior('Josegonzalez/Upload.Upload', [ 'foto' => [] ]);
and $validator->setProvider('upload', \Josegonzalez\Upload\Validation\DefaultValidation::class); in defaultValidator-function.

Foto is associated with Machines

In the form:

$this->Form->create($machine, [
                'type' => 'file',
                'url' => [
                    'controller' => 'machines',
                    'action' => 'edit_foto_ter',
                    $result->id
                ]
            ]);
$this->Form->input('foto.omschrijving', ['value' => $result->type_machine]);
$this->Form->input('foto.foto', ['type' => 'file']);
$this->Form->button(__('Upload file to server'), ['type' => 'submit', 'confirm' => 'Confirm', 'class' => 'btn-info upload_button']);
$this->Form->end();

In MachinesController:

$data = $this->getRequest()->getData();
$foto = $this->Machines->Foto->newEntity($data['foto']);

A this point I get an internal server error and no file is uploaded.

debugging $data:

[
'foto' => [
        'omschrijving' => 'METABO WE26-230 MVT Quick',
        'foto' => object(Laminas\Diactoros\UploadedFile) id:0 {
                 private clientFilename => 'all about that bass.jpg'
                 private clientMediaType => 'image/jpeg'
                 private error => (int) 0
                 private file => 'C:\xampp\tmp\php3389.tmp'
                 private moved => false
                 private size => (int) 66145
                 private stream => null
                 },
        ],
]

The simular code works well with cakePHP 3.8.
any suggestions?