This is a security feature to ensure personal info in linked to the profile properly and is safe.

When you navigate from a secure page to an another secure page, Luminate may ask for a login.
If you experience this, make the second Survey not secure and it will forward on normally. 
You should note that asking for personal information when the page is not secure, is best to be avoided.

To make a Survey secure or not secure:
  1. Edit the Survey
  2. Step 1: Identify Survey
  3. Step 9: Make this survey secure
  4. Check or uncheck the box