It looks like PageForms does no longer respect |values from concept= . The Concept: itself work but on formfields like this:

{{{field|MYFIELD|input type=dropdown|values from concept=MYCONCEPT|mandatory}}}

The dropdown stays empty and I can't add any values to the form any more.

The Concept looks like this

{{#concept:
[[Kategorie:MYCATEGORY]] [[MYPROPERTY::wahr]]
| [[:Kategorie:MYCATEGORY|MYCATEGORY]] die das [[Attribut:ist Geschäftspartner]] ''wahr'' gesetzt haben.
}}

This behaviour came up after update to current Version of MW SMW and PF.

MW 1.31.1
SMW 3.0.0
PF 4.4.1