Buildings auto clearing? turn on your X-MAS lights to let your neighbors know...

This happened to me this morning. I start playing on my ipad to set up some recycling stuff and so on. I played on my ipad again about 5 minutes or so later and all the buildings were still tapable (I left them tapable for neighbors to get FP)

When I switched over to my iphone so I can tap at work, all the buildings rent and payments were gone and all buildings timers reset. Boooooooo!