Getting Notice: Undefined index: hide_layout_builder_field

I'm getting the same error, but also in another file:

Warning: Undefined array key "hide_layout_builder_field" in fvm_form_alter() (line 35 of modules/contrib/fvm/fvm.module).

Warning: Undefined array key "hide_layout_builder_field" in Drupal\fvm\Form\FvmSettingsForm::processBlockForm() (line 304 of modules/contrib/fvm/src/Form/FvmSettingsForm.php).

I created a PR with the fix. I'm also adding here a patch file for the same fix, in case someone needs it.

Thanks @ maursilveira → , working for me.

Thank you for your contributions. The changes have been merged successfully, and a new release has been created with the issue resolved.