Hi, and which version you are trying to play that does that. From what you describing and my previous experience it sounds like you trying to play 0.2.1 or 0.2.2 which had that problem on android unfortunately.
But if it is happening with 0.5.1 then dev should look into it.
May you provide more info if this is the case. Info like phone model, android version, if it is clean install or you have previous version of the game installed.