I might have made a discovery here, but am not sure.
I got a field_8 used in another ‘Field Group’ as well.
Must they be totally unique?
I guess so?
It worked with the 4.x ACF though, but the upgrade now might have thrown in some issued of course.
So I got like this now:
Galllery Field Group > img (field_8)
Interest form Field Group > maxRent (field_8)
How can I make the field_8 for the img gallery to be completely unique?
Do I have to make changes in database, or is there a better way?