This is a known bug with the app. In power save mode, sometimes the app will stop responding altogether. I had a few instances where I was in power save mode, found a Pokemon and tried to tap it and it would not recognize my actions. I had this happen on Android.
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I did that. The screen turned black, and there was no way to bring the game back, other than killing the app. Ridiculous.
This is a known bug with the app. In power save mode, sometimes the app will stop responding altogether. I had a few instances where I was in power save mode, found a Pokemon and tried to tap it and it would not recognize my actions. I had this happen on Android.
Same, but on iPhone..
What iPhone do you have?
5s