In the current state, when JSON Field Utils is updated to new version, the widget configuration field don't recognize the new componentes or other enhancementes. You have to force Drupal to refresh the changes, swiching the wigdet, but you lost the JFU configurations.
It is suggested to create a custom configuration form in order to preserve field configurations when widgets are changed.
Fixed
1.0
Code
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Issue #3332443: When JSON Field Utils is updated to a new version, the...
Automatically closed - issue fixed for 2 weeks with no activity.