In Drawing B, I attach Drawing A - A fairly complex site plan which contains several attached xrefs. After working in Drawing B for awhile, I switch to drawing A and make a couple of changes. Returning to Drawing B I follow the prompt to reload Drawing A. All the colors in the xref'd Drawing A turn to white. Regen and audit don't fix it. I am using AutoCAD Architecture 2023 and saving to version 2018.