Unfortunately, DFFS v4.25x still has some bugs. There were made a few fundamental changes to how “initial value” was read, and this new query fails if the list contains more that “the allowed” number of lookup columns – this is columns of type “people picker”, “lookup”, “managed metadata / taxonomy fields”. The number of allowed lookup columns is set on the server side, so I will have to rethink how this query is performed.
I’m currently working on a fix, and will post an updated version during this weekend.
Post any questions or feedback here: https://spjsblog.com/forums/forum/dynamic-forms-for-sharepoint/
Sorry for the inconvenience,