I did some testing on my side and asked some people to try the game on Android but none of us had this problem. Could you tell me what cellphone or tablet model you're using?
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Well my tablet's name (which I haven't changed) is Galaxy Tab S2, so I'm going to put a safe bet that that's what I'm using.
That information is kinda moot now, since while typing this I did find a (rather annoying, to be honest) solution. By completely uninstalling the previous version, it allows itself to install. It apparently just throws a hissy fit if I try and update from 0.4. It does mean I don't have my saves, but at least it installs.