The communication problem with Kickstarter has been resolved. Out of desperation I re-registered as a complete newbie and then everything worked properly. Kickstarter even recognized my backing of this project. Considering I had been getting Eric’s email updates this seems strange but it worked. It looks like some other backers may have had the same experience.
A big shout out to GEN MANSTEIN for offering to help! Thankfully it is resolved and good to go.