If your connection to the game is not stable, you can experience situations where the data saved on your device can become delayed in contrast to the save data that is immediately updated and secured in the server.
This is what is known as a “data caching issue”, meaning that your device is still in need of updated information from the server. This will typically resolve itself over time as you play and as you fully close and reopen the application.
However, Android users can also visit their device’s app settings where there is an option to clear your cache files. Doing so, followed by reloading the game, will often accelerate your ability to receive the most up-to-date information on your device.