I sort of narrowed down the problem a little bit.
I created a smaller PDF form, it has Digital Signature field as well as the Process Fields group, plus some Text fields. When I used it in the SAME process (changed the Document variable to point to this new small form of course) everything worked! No data loss. Everything on the form including the Signature got passed to the next person in the workflow just fine.
So I think my Process design is fine, the problem appears to be in the original 2-page PDF form.
But I can't figure out what thing on the form could have caused the data loss!
There's no error message anywhere, nothing in the JBoss server log either.
Has anybody seen similar problem like this?
Make sure that you have selected "use document variable" option from Presentation & Data panel.
Look into the process recording and verify the document variable has the completed PDF content saved.
Usually this problem will occur when you forgot to set "use document variable" option and involving prepare data process.
I am 100% sure I use Document variable.
The recording shows there's no data in the Document variable, once the Initiator submits it, the form data is lost.
As I said, when I use a different PDF form, everything is fine, nothing is lost.
Perhaps, the data binding for the form fields set to 'none' ?? This also cause the submitted form data being empty.
If your form/process is not confidential, you can send me the LCA to have a look at it.