It seems that some part of Drupal's cache isn't getting rebuilt when installing field_group.

  1. Uninstall field_group if it's already installed.
  2. Go to the "Manage form display" page for an existing content type: /admin/structure/types/manage/MY-TYPE-ID/form-display . Verify that there is no "+ Add group" button.
  3. Install field_group.
  4. Reload the "Manage for display" page. There is still no "+ Add group" button.
  5. Rebuild the cache with "drush cr", or the like.
  6. The "+ Add group" button now appears.

Comments

Gribnif created an issue. See original summary.

millionleaves’s picture

millionleaves CreditAttribution: millionleaves as a volunteer commented

Confirmed that I can reproduce this with steps 3-6.

philsward’s picture

philsward CreditAttribution: philsward commented
Related issues: +#2848314: Add group button is not available at manage form display
nils.destoop’s picture

nils.destoop CreditAttribution: nils.destoop as a volunteer and at Wunder commented
Status: Active » Closed (duplicate)

Closing this issue as duplicate of a drupal core bug that i just opened. #2861210: Local tasks are not shown after enabling module

geek-merlin’s picture

geek-merlin
they/omg
Primary language German
Location Freiburg, Germany
CreditAttribution: geek-merlin commented
Version: 8.x-1.x-dev » 8.x-3.x-dev
Priority: Normal » Major
Status: Closed (duplicate) » Postponed

I think we should leave this open so people find it.
Major as this is a WTF.
Still an issue with today's 3.0beta1.

nils.destoop’s picture

nils.destoop CreditAttribution: nils.destoop as a volunteer and at Wunder commented
Status: Postponed » Closed (works as designed)

Core issue was fixed in 8.5