ValidationException no longer working

[JacobViertel]

Hi there,
my ValidationException::withMessages() inside the EntrySaving-Listener does no longer work since I upgraded to statamic/cms 3.4.0
Before: If a entry of some collection was saved, the ValidationException marked the wrong input filed of my blueprint red with the given message.
After: Now it simply returns the default toast with a 422 error and no input field is marked.