I figured this was the issue since it only happened after I updated the driver, but i have swapped hardware out aswell so i couldn’t verify that as the root of the issue.
Note for AMD users: The current latest graphics drivers 19.12.2 (and potentially beyond) seem to be incompatible with the version of UE4 that Automation is using! With those the game will not start unless you select DX10 mode. This is not something we can fix without an engine change to the latest version, which will come with the next big update. You can roll back your drivers to a previous version or just not update to latest just yet.