I don't know what to say on this. The Android version has a bunch of downloads, and no one has reported a single issue with it. The most common result from Google says that it's likely due to a previous version already being there and having a conflict.
The current chapter is almost certainly the last chapter that will be done for Android, as the game is at the hard 2gb limit for Android APK. I highly suggest getting the Windows version. It can be run on your Android device via the JoiPlay app.
adb: failed to install btw.game-6-universal-release.apk: Failure [INSTALL_PARSE_FAILED_NO_CERTIFICATES: Failed collecting certificates for /data/app/vmdl930550701.tmp/base.apk: Failed to collect certificates from /data/app/vmdl930550701.tmp/base.apk using APK Signature Scheme v2: integer overflow]
