If you are receiving the error code LS-0019-IS-PQR4 when trying to launch Spellbreak from the Epic Games launcher, you may need to run the installers for the Unreal Engine (UE) and EasyAntiCheat (EAC) manually.
1. To install EAC, navigate to your installation directory for Spellbreak. This will be something like C:\Program Files\Epic Games\Spellbreak. From there, go to \EasyAntiCheat\EasyAntiCheat_Setup.exe. Let it install.
2. To install UE, similar thing. Navigate to your installation directory for Spellbreak, and from there, go to Engine\Extras\Redist\en-us\UE4PrereqSetup_x64.exe. Let it install.