I switch every 10 Pt Challenge no matter what it is. They are all so easy to do, so might as well! I got mine this morning 
but did have this happen recently!
I had a “Play 2 Games of Bingo” Challenge and this happened! 
Worst of all is this Game DID NOT count as being Played on the Challenge! 
No more 10M bets for me on this Game. What a Bummer! 