I updated the game on Android and it created another app with 0 progress and didn't update the 4.7 version. Is this a bug or do I have to start from scratch
Hm, afraid that's due to the package rename from vgg back to ocn, sorry.
However, if you choose "Skip to" in the main menu, you can start a new game with all events that were added before 0.5 cleared.
So it'll be as if you had cleared all events from 0.4 and older, effectively like continuing from a fully completed 0.4.x save.
There won't be any more renames like this, so this won't happen again.
Sorry for the inconvenience.