I was creating a form yesterday using attachments and it failed on the file upload.
I realised there was a problem with the Default File Storage connector which I resolved and it all works ok.
Our tenant has been around for a while and on our customer tenants they do not have the option to configure and are using the new internal blob method.
So I was wondering how do I turn off the Default File Storage in our tenant and switch to the new internal method?
https://help.nintex.com/en-US/nwc/Content/Settings/DefaultFileStorageFAQ.htm indicates soon but this has FAQ been around for a while (Jan 2019).