LR Workflow, Metadata not updated

Hi there,

using PR 2.3.0 and LR 12.1. The workflow sending images from LR to PR works and the DNG files get imported to LR. However after import they show the medtadata conflict icon and I have to import the metadata from disk for all DNG files.
BTW I’m using the routine file > export with preset > process with pure raw … if that matters.