Minion disappeared after removing farrul will bloodline

Hello,

As the title implies, I had 1 minion which was perfect forest tiger, and wanted to remove the farrul will bloodline which cap it at only 1 minion but it suddenly disappeared, it vanished from the area and there is no corpse whatsoever for me to resurrect it back. Is it a bug? am I missing something? I read all of the previous patch notes but I could not find anything mentioning any minion disappearing.