Has anyone seen expedition stop while opening designs and report "Snapshot is in use (Could not copy with overwrite to snapshot [pro_layout_temp] because it is currently in use)"??
It is doing it on a number of designs. I can open most of the designs in PCB Planner but get the same error when attempting forward annotation.
I've moved your post to the Xpedition Layout community so that it is more likely to be seen by somebody who is able to offer suggestions for you.