DF Reference FAQ for object Service can't be a MultiValue field

[StefanAbel-OTOBO]

When you create a new DF for the object "Service" (so I'm not sure if this is in the right repository, as it concerns both) Reference to FAQ-Article, and you mark it as a MultiValue-Field, the field-label is still there, but the field itself is gone.
OTOBO 11.0.5
ServiceCatalog 11.0.2
FAQ 11.0.2

[svenoe]

Needs to be updated to new dynamic field methods. Medium priority as old stuff works.