We are seeing a similar issue.
If we copy an XML request that has empty nodes into XML view (ie <node/>) we can execute the request with a successful response.
We can jump into the outline or raw view and back to XML view with no change, and still get a successful response upon execution.
However, when we move to the form view the empty nodes become replaced by empty lines causing the test to fail do to contract mismatch.
A significant issue when I just convinced my manager to purchase 20 licenses.
before form view
<ns1:FileEncryption xmlns:ns1 = "http://someurlpath">
<ns1:DecryptFile>true</ns1:DecryptFile>
<ns1:KeyID/>
<ns1:PassPhrase/>
</ns1:FileEncryption>
after form view
<ns1:FileEncryption xmlns:ns1 = "http://someurlpath">
<ns1:DecryptFile>true</ns1:DecryptFile>
</ns1:FileEncryption>
