From your point of view, Peter, the things you experienced do seem strange. But, as Savi said, they have their explanation in two bugs that are receiving a great deal of attention from the development team.

The first bug, which resulted in the disappearance of Meka and her baby, seems to occur when villagers are being buried, or at some point after that. It's a memory management issue related to how villagers are handled in the game. The safest thing to do (until the update is released) is to avoid 'touching' any villagers while burials are going on, and to exit the game after the burials are finished. That will do two things: save the game (which will help with your second strange thing), and cause the game to 'rebuild' your list of villagers when it loads.

The phenomenon you described after receiving the 'no shadow window found' error (also a high-priority bug) is also easily explained. The game is saved only when you exit to another application or to the launcher. If you soft reset the device for any reason, the game does not have the opportunity to write to the savegame file (and, thus, record any babies that had been born, tech levels that had been purchased, actions that you initiated, etc.). When you launch the game again after the reset, Village Sim will load the existing savegame file (which, in your case, was probably saved many hours before the crash). Upon launch, the game calculates a new game state based on the previously saved game state and the time that has passed since the game was saved (it's a 'real time' game). Villagers will age, tech points will be accumulated, the available food supply will change, construction projects that are in progress will be more complete, etc. However, anything that you initiated during that period would be 'lost' in the process of the reset. Meka and her baby 'came back' because their disappearance had not been saved. I usually exit my game periodically just to save it. You can launch it again right away, and continue from where you left off.

It's unfortunate that you hit the two nastiest bugs. Rest assured that they will be fixed (and there will be some enhancements in the game) when the update is released.