Help! I just put my Queen down for upgrade, planning to use the book of heroes to complete it so I can use her in war tomorrow, and the book of heroes is disabled. The only option visible is “sell”!! Is this a special feature to prevent people from upgrading heroes on preperation day? And if it is, why isn’t there a warning!! I would never have started the upgrade if I hadn’t thought I could get her back for war. Is this a bug? I’ve closed and reopened the app, and restarted the ipad with no success. Playing on ipad, sw 11.2, over 100GB available.
