On the Update Metaobject action, the action fetch default values for the metaobject fields when the user selects a metaobject, but this breaks when the user uses dynamic value.
Yea so you’ll need to select the metaobject from the list, like in your 2nd screenshot. Using a custom expression won’t work here, which makes sense, because I believe the metaobject fields might change between each execution, right?