Same problem. It's absolutely insane.
Playing Mass Effect Legendary Edition, never ever had any issue with this game since it first came out in 2007. Played and replayed both the original and LE edition on Origin for hundreds of hours. I modded them to no end and never ever got any problem, not even a single crash. Until this nightmare of an app came out.
It started with a couple of crashes, then out of the blue, the game simply refused to launch. Game data corrupted. Repair game, nothing. Uninstall, redownload (110 GB!), reinstall. Nothing. Clear EA App cache, uninstall the app, reinstall the app. Many times. Nothing.
I spent the last three days trying to get it to work. Tried everything the internet threw at me. To no avail. As a last resort, I rebought the game yesterday on Steam to avoid using EA App. Little I knew. You HAVE to use the latter anyway. And guess what happened? The game refuses to launch, Error EC:203.
How did you manage to create something that's even worse than Origin? You've been around for decades, yet are still unable to come up with a decent app? EA App is the worst launcher on the market by a country mile.
Sorry for the rant but I've been playing video games for more than 20 years and no other launcher gave me such headaches as yours.
