Hello! My team creates XFA forms in Forms Designer 6.2. When we add a digital certificate to the form [using Acrobt Pro 2017 > Tools Certificates > Certify (Invisible Signature)] and then extend it to have basic usage rights, the digital certificate invalidates or disappears. We have a workaround for this where the form is first opened in LiveCycle ES3 and the target version is saved (through Form Properties) "8.1 or later". For some reason, this allows the certificate to be successfully added a...