eSign has deployed an update to fix and resolve the ampersand (&) symbol bug. You may now create and send sessions as normal. As a precaution, eSign is going to delete all corrupt draft sessions created between Saturday, March 17 through Monday, March 19 1:30pm PST. This will prevent you from accidentally sending a corrupt session.
If you have any problems with eSign or zipForm® in the evening or on weekends, you can get after-hours assistance by emailing firstname.lastname@example.org.