If I had to guess the drive didn't come back so my bet is the drive's content is gone due to the changes and you get to start over. That is treat it like a new drive. If need be run DBAN to be sure it's blank and then treat it like a new blank drive.
I have had serious issues with Raiding and deleted HDD. Let me save you and show you a discussion I had with someone else;
http://www.tomshardware.com/answers/id-3804873/raid-hdd.html#21411396

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