Mass Effect 3 DLC Errors
Ran into an issue that I think I have seen a few fall into in recent months, that of Mass Effect 3 failing to authenticate DLC - in my case, From Ashes and the Game Pass. Picture linked. Spent close to 6 hours last night trying to get it fixed and 4 separate support advisors and none of them rectified the issue. In fact, none of them seemed to have the faintest idea what to do and seemed more eager to be able to hand the issue to someone else.
My EA ID is DapperT_47, and I am using a copy of Mass Effect 3 purchased from Steam, the N7 Digital Deluxe Edition. Its the first time it has been installed since Origin was discontinued, the previous installation being in 2021 (which had no issues). The issue has been troubleshot to hell and back, I have deleted and reinstalled DLC files in various ways, EA App too. I've cleared caches and regenerated license folders. I've messed with my firewalls. Best as I can tell, there is no issue with the files, they are there and properly downloaded, and it is able to connect to EA servers. EA servers can see that I own them, it just for some reason will not accept its authenticity. Perhaps worth noting is that my EA App seems to think I am accessing the standard edition via Steam, rather than the N7 edition. Further, From Ashes appears twice in the EA App DLC management list, once like all the others and a second time telling me to manage it on Steam - meaning that it is both installed and uninstalled according to EA App.
Any ideas or guidance would be appreciated, as I am rather at my wits end with trying to get this old game to function properly.