Hi,
I had this problem for quite some time now.

When we use SMS verification with the imbedded signing it is preventing the user to change its signature.
When not using the SMS verification the user can change its signature as expected. (We need sms verification )

This feature is not accessible when using the SMS verification

To reproduce this behavior please add the following in the method makeEnvelope of EG001ControllerEmbeddedSigning
final List RECIPIENT_PHONE_NUMBERS = Arrays.asList( YOUR PHONE NUMBER );
final RecipientSMSAuthentication smsAuth = new RecipientSMSAuthentication();
smsAuth.setSenderProvidedNumbers( RECIPIENT_PHONE_NUMBERS );
signer.setSmsAuthentication( smsAuth );
signer.setIdCheckConfigurationName( "SMS Auth $" );

Then try 1. Use embedded signing and will see that you can't change your signature once you adopted one.

I am doing something wrong that prevent me to change my signature when using the SMS verification?

Is there any work around to get this functionality back when using the SMS verification ?

Our customers don't have a docusign account.
Possible work around :
Is there a way to remove the signature adoption of a signer via the API or via the Admin page? SO the next time they sign a document they have to select a signature adoption ?

Kind regards