Hi!
I am experiencing the same unexpected behaviour on a live and test site. Both J3.10.2 and latest released CB core/plugins.

Steps to reproduce:
1. Have a field with query validation on the profile page. Ajax validation can be on or off. On my test page, I used a text field with query validation SELECT [value]=42 and ajax validation = on.
2. Have a fileld group below 1. On my test page a use a group of single-select dropdown fields with Value 1, Value 2, Value 3.
3. Fill field group with a selection of fields from dropdown and save profile.
4. Leave field with query validation empty or fill with a valid value. 42 on my test page. Save profile.

Provoking the unexpected behaviour:
5. Edit profile and enter a value in field with query validation that cannot be validated successully, e.g. 3 on my test page as 3 <>42.
6. Klick update.

Problem:
Field with query validation will be validated and throws an error message. But all fields in field group will also be deleted. If a user corrects the woring field now (e.g. by entering 42), all values from the field group will be removed.

Thanks!

Frank

Hi!
Right! But I think there is still a problem.
If the user only wants to change the value of the query validated field and not the field group, the field group might be unintentionally saved with empty fields.

As if you want to change your email in a profile, get an error, you correct your error and press save. Later on you realize that your telephone number (or whatever) is gone. The user might just not check if all other fields are still there before pressing the save button.

What do you think?

Thanks
Frnak