MyVegas Mobile Game chip collection question

I loaded the mobile games on my phone and rarely play but go in a couple times a day (usually on my commute to and from work) just to collect chips. Until the last week or two after collecting the 4 hour bonus I usually got a link to play a video to get more chips. I have not gotten any of those "view add for more chips" links for several days. Just wondering if that is something they stopped doing generally or if it is specific to me because of something I did. Not sure I have played either game for a month or two - just collected chips pretty much every day. If you don't actually play slots or BJ for a period of time do they stop giving you those chip collection options?

 

They're gone for everyone, no idea why.