If you are downloading the game resource packs of Arknights and the progress bar is stuck and cannot continue to download, as shown in the picture, please try the following methods:

Click the Memu icon at the upper right corner of the emulator → Settings → Performance - Performance configuration → 2 core 4GB, restart the emulator and the game to continue downloading.

After the resources are downloaded, you can switch back to your original configuration. It is recommended to select "Medium Performance"