message: Added extra conditional for proton detection if the field exists
diff: @@ -98,6 +98,7 @@ export default class GameDirectoryResolverImpl extends GameDirectoryResolverProv
  return (
  typeof appManifest.AppState.UserConfig.platform_override_source !== "undefined"
  + && appManifest.AppState.UserConfig.platform_override_source.length > 0
  );
  } catch (e) {
  const err: Error = e;
  