First things first, it's a shame that EA still hasn't been able to fix this bug while we are forced to use the buggy EA-App.
And yes! That's my first Mass Effect playthrough. Somehow I missed playing this great game until now. shame on me...
Nevertheless, taking the EA App offline to unlock achievements in Steam as described worked for me so far. So, thanks for sharing.
With storyline achievements though, it doesn't seem to work:
After completing the Reaper IFF mission, i unlocked the ghostship achievement in-game, but the EA app crashed (unsurprisingly), so the achievement wasn't unlocked in either the EA app or Steam.
No problem (i thought), just play the mission again (as usual):
- delete GameProfile file before...
- start launcher...
- Switch EA App offline...
- start ME2...
- load savegame before mission completetion....
- complete the mission again...
- close debriefing with the illusive man...
- and, this time... NO ACHIEVMENT, DAMN....
However, the achievement Friend or Foe, which is also obtainable in this mission unlocked and consequently there was no problem with the EA-App offline workaround.
- Restoring GamerProfile files and savegames from backups i did before the IFF-Reaper mission didn't work either, because by then the ghostship achievement was already unlocked in the game.
different sync? not related to GamerProfile or savegames? i dont know... - If I delete the GamerProfile file before launching the game (and therfore no achivements at all are unlocked in-game), the ghostship achievement can't be unlocked despite successful IFF Reaper mission.
Why? With any other achievement, I missed due to crashed EA-App, temporarely deleting the GamerProfile file and replaying till achievement worked to unlock those afterwards.
After several hours of playing this mission again and again (also the entire mission, several times), gettting more and more frustrated, I've also lost motivation to solve it for now.
Maybe someday I'll try to unlock this achievement with a replay of ME from scratch.
Furthermore I'm afraid that trilogy-wide achievements such as Insanity or Paramour will also not be unlockable via EA-App-offline-workaround.
Despite being unlocked in ME1, Paramour 1 for example isn't shown unlocked in ME2 (in-game).
Good that I didn't try an Insanity walkthrough for my first playthrough. Without achievement rewarding, that would have upset me even more.
And, since I don't expect EA to fix this bug at all, I probably won't even attempt this challenge. Too bad!
For now, i'll enjoy the game itself and especially the good story without worrying about achievements any longer to delve even deeper into the fascinating mass effect universe.