How to Remove Password I did not set up in Adobe Sign?

I created a pdf with "no security" and sent it to clients to be signed with Adobe Sign.  When it came back signed and with the certificate, it also had a password attached which neither I nor my clients set up.  I cannot e-file the signed document with our Court with a password attached.  I tried it with a few other documents to see if it was an anomaly and it happened each time.  I tried Adobe customor support but they were not helpful and I can't get a supervisor on the phone at Adobe Support.  Any ideas?  Thanks!