Maybe this will help someone who finds this thread, but I had the game installed from 2018 or so and decided to play again recently (2020), did the updates etc and launched the game and would get stuck on the launch loading screen before eventually just closing.
Tried every other fix until eventually I saw someone said to do the following:
1. Go to where your game is installed
2. Rename the folder (e.g. from Star Wars Battlefront II to SWB2)
3. Delete all the files in the folder except for the 'data' folder, also delete the game files folder in your user/documents/star wars battlefront 2 folder (like 4 small files)
4. Origin should now realise the game has disappeared and wants you to download from scratch
5. Rename the folder back to normal and then go into Origin and locate the game
6. It should download about an additional 30gb worth of game files (instead of the full 90gb or whatever it is)
7. In origin, go into the settings for SWB2 and untick the 'load origin in game' or whatever the setting is
7. Once done, launch!
This was the only thing that fixed it, all the things I found kept going on about disabling DX12 and swapping something from a 1 to 0 in the config, but mine was already deactivated so none of that helped.
Hope this helps!
