Nearly a year later and I'm still experiencing this issue. Does anyone have any suggestions!?
I must have missed your original post.
I just checked with Acrobat XI, and I see a slightly different behavior: All non-signature fields are available on the newly spawned pages, and they have the same names as the fields on the original template and all other pages spawned from that template. The signature however is only on the first spawned page, and does not show up on any other spawned pages.
This is what I would have expected.
You can copy and paste a non-signature field, and have an identical copy of the first one. Actually, you don't have a new form field, you have a new instance of the original field. That is why you automatically get any data entered in one instance to show up in the other instances. This does not work with signature fields: you can only have one instance of a signature field. If you try to copy and paste a signature field, nothing will paste.
What you are trying to do cannot work. You need to redesign your solution.
I'm actually only making one copy of each spawned form, so it is not an issue regarding having multiple copies of a signature field.
I'm using the spawn template as a workaround for the fact that I can't show/hide pages in Adobe Reader (which the majority of our staff use). By default the templates are all hidden, and it spawns and deletes them as needed as a "show page" and "hide page" workaround. Reader lets me spawn pages and delete spawned pages, but I can't show/hide regular pages or create/delete regular pages. The form works beautifully for the most part including the signature fields. The only issue I have is that the "Execute Once Signed" script that exists on all of my signature fields to populate a "date signed" field doesn't consistently work. It actually works sometimes, just not all the time. Sometimes it won't work on one particular signature field, I clear the signature and try again, and then it does work.
In that case, it's very likely a bug. If something works sometimes, but not all the times, it's a pretty good candidate for a bug report. You can report bugs in Acrobat here: Feature Request/Bug Report Form
Thank you, I have done that now.