I have basically followed along with this but I am having trouble accessing the strings stored in the structs such as login password and email. It seems to work fine to get through eosioc and the JSON for the action traces show the string but when trying to read the string within the contract logic it fails unless the string is only 12 chars long. the struct without the string (eg. age only ) works fine. I have also tried it on dawn 3.0 and dawn 2.0 with similar failures. Any thoughts?