If you see an "Assets Downloading" or "Data Downloading" pop-up, please make sure your game is connected to a strong, stable internet connection so your game can download the necessary files to continue playing the next task. Please also ensure that you are not downloading files in the backgrounds, such as app updates, which can slow your connection down. Then leave the game open for up to 10 minutes, time varying based on the strength of the internet connection, to make sure everything downloads fully to your device.