Tonight I pulled defensive troops from 5 beacons totaling around 800,000 defense. I watched the progress of the return and even used boosts to get them back to the castle faster. When they disappeared from tracking, the completely disappeared. My castle is located at -470, -5944 on The Dark Plains server.  These missing troops represent almost 10% of my defense. Almost all were dark demons and dark griffins. Is there some way to find out what happened and recover the missing troops?