Fields in additional tabs do not write to the database

I have 3 different types of users on this site. Regular registered users create an account using VirtueMart. There are also Distributors which create an account at precision-vision.biz/Create-an-account.html?grp=dist or Professionals create an account at precision-vision.biz/Create-an-account.html?grp=pro .

I'm using CB Conditional to display the appropriate tabs depending on the URL parameter which works fine. Everything was working fine with registering the info on all the tabs for each user type until recently. Now none of the field info on the additional tabs is written to the database. I've checked through all the CB Tools and ensured there are no database problems. Distributor registrations show no errors even with maximum debug mode on. In error reporting, upon filling out all fields and clicking Register, the SQL statements shown do not show an insert statement for CB at all, only the core joomla user fields being inserted.

Typically means you've conditioned the same tabs/fields multiple times. When you do this only the last conditional to apply matters. PHP will only use the last one. So the values are likely being removed by the last conditional being applied. You'll need to review your conditionals carefully. To confirm this is your issue simply disable CB Conditional and see if data saves.

I disabled the conditionals plugin and the fields did then save. But I can't determine what is wrong with my conditions. I've attached a screen grab for each tab. I want one to appear if the URL parameter equals 'pro' and have it not appear if it's not. Same thing for 'dist'. I only have tab conditions setup, no field conditions. The tabs appear as I want them to for registration, but they don't save the data.

You're conditioning off [get_PARAM]. Get comes from $_GET, which is from the URL. When you save it's posting to an internal URL, which will not have your [get_grp]. In short your conditional is impossible to maintain on save and is only applicable for Profile View.