we're in a transition phase between the new and old webforms, so please bear with us :)
We introduced a security check that should have been in place long ago, which ensures that the webform is being submitted from a trusted source and that it belongs to Podio.
If you're curios, you can search for CSRF protection.
Specifically, the webforms can now only be used with their "Podio link" OR with the official embed script.
Any other usage that worked before will not work anymore.
This includes, but it's not limited to:
* Sending a POST request with the correct fields and address via custom HTML forms
* Sending a POST request with the correct fields and address via mobile
For all these "custom" needs, you are advised to use the API directly
Regarding the prefilled fields, we are aware of the situation and they will be restored ASAP.
I hope to have addressed your questions throughly and thanks in advance for your understanding,