I am building a workflow that requires me to update a field in a list that is in another sub-site. I am using the Update Multiple Items action and I can successfully reach the list in question. When I activate the "Fields to update" selector, only a small selection of the list's fields are showing up. I found the discussion on Fields missing in Update Multiple Items but this covered a document library and the solution seemed to be a problem with checked out items.
I have tried to create a workflow with the same action on the list itself and the Update Multiple Items action still does not work even locally but the Update Item and Set Field Value actions both display all of the list's fields.
Here are the fields in the list...
...and here are the fields exposed by the Update Multiple Items action...
Any insight would be greatly appreciated.