TYPO3 tx_form doesn't render submit button - typo3

Question

I have a 10.4.18 installation, on another project that works fine (which i copy to the current). In my current project they render the submit button like this:
<span class="btn-group next submit">
Absenden
</span>
There is no button and not clickable, anyone have an idea? There are no template overrides or custom configuration, form is added in template (without I get an exception) so that works.
The yaml configuration:
renderingOptions:
submitButtonLabel: Absenden
identifier: kontakt
label: Kontakt
type: Form
prototypeName: standard
finishers:
-
options:
subject: 'Kontakt über Website'
recipients:
test#test.de: 'Test Webmailer'
senderAddress: '{email}'
senderName: '{vorname}'
attachUploads: true
translation:
language: default
useFluidEmail: true
title: 'Confirmation of your message'
addHtmlPart: true
identifier: EmailToReceiver
renderables:
-
renderingOptions:
previousButtonLabel: ''
nextButtonLabel: ''
identifier: page-1
label: Kontakt
type: Page
renderables:
-
properties:
options:
Anfrage: Anfrage
Lob: Lob
Kritik: Kritik
type: SingleSelect
identifier: singleselect-1
label: 'Ihr Anliegen'
defaultValue: Anfrage
-
defaultValue: ''
identifier: vorname
label: 'Ihr Name'
type: Text
properties:
fluidAdditionalAttributes: { }
elementDescription: ''
-
defaultValue: ''
identifier: email
label: 'Ihre E-Mail-Adresse'
type: Text
properties:
fluidAdditionalAttributes:
required: required
validators:
-
identifier: NotEmpty
-
identifier: EmailAddress
-
defaultValue: ''
identifier: nachricht
label: 'Ihre Nachricht'
type: Textarea
properties:
fluidAdditionalAttributes:
required: required
elementDescription: ''
validators:
-
identifier: NotEmpty
-
properties:
pageUid: '13'
linkText: 'Datenschutzerklärung anzeigen'
fluidAdditionalAttributes:
required: required
type: LinkedCheckbox
identifier: linkedcheckbox-1
label: 'Ja, ich habe die Datenschutzerklärung zur Kenntnis genommen.'
validators:
-
identifier: NotEmpty