So I’ve had HS installed on my phone for ages (Huawei P20 Pro), attempted to install the latest patch and it stopped fully downloading claiming there wasn’t enough storage to continue the asset download.
I completely uninstalled the game and re-downloaded from the Play store. When launching HS it pops up with a message saying “There is not enough space on your device to install Hearthstone. Please free up additional space”.
So there is 95gb of internal space free (no SD card slot on this phone), I went into the app settings and enabled both the ‘location’ and ‘storage’ permissions but still get the same message.