Adobe Sign form limitations with new tools

Hi, I wasn't able to find recent details on this issue, so apologies if this is asked elsewhere already. 
I have been using Adobe sign to send various documents for e-signatures for a while, but now when i try to send these same documents, the form data is all deleted and converted to empty text fields with the error: "unsupported fields have been removed from this document"
these unsupported fields include: Text fields, a dropdown, and signature blocks.

The amount of time spent making/remaking and reformatting these forms is frustrating, but also doesn't actually allow me to have the simple functionality that I was hoping to have/retain. The functionality I'm seeking includes:

• default values for fields
• multi-line support
• number formatting that exists within both adobe sign and acrobat (currency randomly does/doesn't work)
• entering a value for it to show up in multiple places within the document (effective date, etc)
• sizing of text to be readable by the recipient rather than random sizing and usually spilling off the page/form and breaking formatting

I'd appreciate any help in how to improve the usability of the new toolset.  I haven't yet rolled back to previous versions of Acrobat, but will be trying that as my first attempt at finding a way to use my PDF documents.  Thanks for any help!