I published form in Survey123 Connect 2.0, but we can't sent a forms from Survey123 (2.0) Windows or Android in the result we get the same Error 400, like in image which I insert here.
Another forms from the same devices works ok.
I use mobile internet, attachments was not activated.
Maybe .xml schema is wrong? Form has complex structure with multiple relations maybe in some of this relations is a problem? I attached .xlsx schema.
Thanks in advance for your help.