We had to change back to older Version because of some problems:
1. When adding an ACF Field to the Form, we were not able to give this Field a name – this part is missing.
2. Our form had uploads such as pdf or pngs but did not work properly. There was always an error – it asks for a value although a file was selected.
3. This Error occurs in previous Version where the upload works: when uploading a pdf-File – there is nonthing in the Media-Folder and the ACF-Fiel in the Post has no Value in it. For some reason the pdf File is not uploaded.