VBO modify entity values does not work with field_group

I tried to set up a VBO view to modify groups of nodes of a type that has fields in accordion groups. After I've selected the nodes I get to a display that shows the accordion tabs, but it is impossible to see the fields within them that need to be modified. If I change to vertical tabs the fields are a little more accessible, but not very useful.

I applied the patch in #2095163: Notice: Undefined index: group_dimensions in field_group_fields_nest() (line 1959 of field_group.module). in hopes that it might solve the problem, but no joy.

It appears that field_group cannot decide how much a tab has to open to display the fields contained in it. It also cannot decide whether to display the fields or check boxes that must be checked before the fields become visible.