Viewfield with forced default value in a collapsed paragraph leads to error

Hello,

I have trouble in the situation described in the title of this issue.

I get the following error message if the paragraph is collapsed:

"Fehler beim Validieren des zusammengeklapptem Seitenabschnitts field_bloglist: Dieser Wert sollte nicht null sein."

In English it should be like:

"Error while validating the collapsed paragraph field_bloglist: This value shouldn't be null."

The viewfield's reference type is view, of course and I selected a default view. Also I selected the option to use this default value in all cases ("force default"). Hence the field doesn't appear in the paragraph in the node edit mask. If I open the paragraph, it works.

Is this a bug or is there something I can do about the config?

Thanks in advance!

Bye Defcon0