KingDome24

Yes, I'd recommend you completely uninstalling and then re-installing TruckersMP to be able to play both ATS & ETS2. Until now, I haven't seen any possibility to add eiter ATS/ETS2 after successfully installing the multiplayer (it may work though if you just run the setup again, but this might cause additional/other problems).

@alekshunjadi69 You have to update your ETS2 version to the one stated above. Either leave any Steam betas you currently use or check for any available updates in the Steam download section. The following articles might also help you resolving your problem:

@Meto That is a really interesting assertion. Could you please provide additional information to prove your point? I personally don't think that more than 500.000 accounts are only "backup accounts"..

Have a look at the following troubleshooting Q&A, this should be able to help you:

This shouldn't be a problem at all. I can play multiplayer with version 1.27.1.2s without any problems, although officially only version 1.27.1.1s is supported.

As stated by the media team on Facebook, it "is unlikely to be changed at this stage".