Board Thread:Game Discussion/@comment-33068520-20171227063445/@comment-34593406-20180205124541

A Fandoom User wrote: Same thing here. I’ve been thinking it may have to do with iOS offloading storage space. Any of you using Android?

Yeah, looks like it's iOS. I saw that my system size had grown to 9Gb, not sure why, and was causing a space crunch. Only way to deal with it was to backup my phone (and the save game data), reset the phone and restore the backup. Plenty space now and the game seems to have stopped doing that.