Can I initialize the broken view mode? In a bundle of content types, I placed fields on many vertical tabs of the field group.
In order to switch display / non-display of the field, I moved and saved it without going well for each tab.
Movement of many fields and field groups at one time was not very easy.
t was saved with tab items and fields that do not belong to parent tab.
After that, even when tabs and fields were moved and saved, there was no change.

I think that the View mode is broken.
I also copied the broken view mode to default.
Therefore, all the view modes are deleted, the newly created view mode is copied from the broken default and remains broken.

Is there a way to restore the default view mode for a particular bundle?

Environment:
Drupal 8.5.6,
Field group module 8.x-3.0-beta1,
Display Suite 8.x-3.1
Export the config and open the view mode in a text editor or run this drush command from the command line:

drush cedit core.entity_view_display.node.[content-type].default


Then remove the field settings you think could break your view mode and import the config again or exit/save if you used the drush command.