Hustle issues & questions

Hi,

I am using hustle on my websites (wordpress multisite). I can create forms successfully, but once created, if I want to edit it, it returns me infinite redirect. What can I do? I have opened access to my websites. I have them active on espcializados.es, picaronia.com (disabled because infinite redirections and I am with another plugin..., but I would like to use hustle) and gadgetgt.com... on all of them it returns me an infinite loop...

Another question. I would like that when one user registers to my mail marketing lists, it also creates a user... How can I do it?

Thanks.