field_groups - adding an inner div wrapper programatically I have some older code that used this method to add an inner div containing inline style.

Much like the linked question above. I am using hook_preprocess_node to attempt this. 

However, the $variables['content'] array no longer seems to contain the groups in it and I'm not sure exactly what's changed. I haven't managed to find much else on this in the issue queue and elsewhere.
It is strange that this has changed and I can't really find any posts relating to it.

I'm going to update my code to use hook_field_group_build_pre_render_alter() as an alternative.