Thanks for your quick answer @texnixe. Sorry if i might have used the wrong term. What i meant is the red-ish border around an empty (text) field which works on the page blueprint:
but does not work on the block blueprint (on drawer):
Yes, I can reproduce this issues⌠Some field types show a red border like in your screenshot, e.g. a files field or a select field, most donât. Could you create an issue on GitHub, please?