I have seen a similar bug that is marked as solved and fixed in 1.9.
Now it’s 1.12 and I am having the same problem.
I have a group of fields in ACF. And they are not displayed.
Unfortunately, I cannot reproduce the issue. The report you refer to is not only about groups but also about flexible content. I can’t tell from your screenshots whether this is also true for you.
Please send temporary login credentials and a link to this thread to help@bricksbuilder.io using the email address you used during the purchase.
Thanks so much for the login credentials!
As already stated by email, the problem is due to incorrectly generated ACF fields/groups, as the reference to the fields is missing, and therefore, nothing can be output.
Since the fields and groups were generated using custom code, this is not a Bricks bug.
I will write the solution here in case someone will face the same.
I tried to create an import plugin from excel. I saw the data in the posts in the admin. The problem was that the import didn’t put data in fields with _. And also data for group field was empty. When I changed it, everything was good.