PDF Raster is attached only as read-only

I´m using Microstation V8i (SS2). Before today I was able to attach pdf files  as read/write mode but now it is suddenly not possible. Also the pdfs, which I have earlier attached and modified (moved, rotated, scaled etc.), are now as read-only mode. How can this be? (Just be clear, I am talking about Raster Manager, somehow attaching in Reference Dialog is working.)

When attaching new pdfs, I have checked that none of these is happening https://communities.bentley.com/products/geospatial/desktop/w/geospatial_desktop__wiki/13443.raster-images-are-being-attached-as-read-only-in-raster-manager.aspx

What can I do?