had the same kind of thing happen with the wolf (boss one behind glass) keycards gone, used it before doing anything with the gas canister.. saved & reloaded) can't get the key behind it now.
there's a problem with hedera's 4 conversation scene i can't complete it on my tablet, i'm not using joiplay just the current early access version for android. all her previous conversations were seen + deviances which were completed and claimed.
running the game with a refresh rate above 60 on PC is causing issues for me. i can't use any of the cards i have for battle unless i set my monitor to 60hz, it's playable after doing that.
i think it got uploaded as a zip. if you look at how it's named here before you hit download.. it says RequiemSymphony-0.1APK.zip when it should end in apk. this might need to be looked into by the dev since this looks more like a pc version when unpacked.