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I have tried this on three different installations. Two running Drupal 8.1.8 and one on 8.1.9. One of these was a new install with nothing configured out of the box. There is no form at all on the admin screen at /admin/structure/display-modes/form/config-form-modes. PHP version is 7.0.8.
After some troubleshooting I found that there is a form element set as a select when it should be 'details'. Once I change that the form displays again and seems to work. Patch coming, I think.
Comment | File | Size | Author |
---|---|---|---|
#2 | Admin_screen_is_blank-2797519-1.patch | 723 bytes | megan_m |
Comments
Comment #2
megan_m CreditAttribution: megan_m commentedHere's the patch.
Comment #3
eme CreditAttribution: eme commentedHas been fixed.