Several updates for Starcraft 2 seem to get stuck at some point while downloading. Afterwards, I can pause the update, and try to re-start it. Once re-started, the battle net app continues the installation as if it were a new update (which doesn’t make sense). Unfortunately, when continuing the update it also gets stuck and have to re-try the download.
I’m on a 16inc Macbook Pro 2019 running macOS Catalina. The BattleNet app is up to date.