Grouping fields with field group doesn't work on display of Drupal Commerce product in product variation I've got a content type for a product and fields for variation. I'm writing about fields in that variation. I have created new group containing some fields using field groups.
Let's say:

[Field group]
 1. Foo
 2. Bar


The group setup is done properly on content type/field display in product variation tab. I'm using drupal commerce, I have tried updating CRON, flushing cache, drinking beer, resaving content. It didn't help. Anyone has any idea?
The Field Group module provides the ability to group on both the edit form and the display independently.

This means to add a field group to the form you have to do so on admin/structure/types/manage/CONTENTTYPE and to add a field group for display you do it on admin/structure/types/manage/CONTENTTYPE/display (this is for nodes, this will be in different places for other entity types).

If you want the group on both the form and the display you have to add it in both places.