Here's hoping there's one for Windows soon. I checked to see and I don't appear to have one.There’s another update in the iOS store, version 5.2.1, The description doesn’t give any details but it might be a fix for you folks missing ad viewing.
They appear to have pushed out some kind of in-game change that helps a little: for two days straight, I've been able to watch exactly four Gameloft ads the entire day. Yesterday, I watched three event ads and got the daily chest. Today, I was smarter and got the two gems.