I think the update is seriously broken and the developers will probably be fixing it. Problems at the startup menu as well.

Roll back Stellaris to 3.3.4... STNH has not been updated yet... This happens with EVERY base game update...

Originally posted by Ruin:

Roll back Stellaris to 3.3.4... STNH has not been updated yet... This happens with EVERY base game update...

how do i do this?

https://www.reddit.com/r/Stellaris/comments/9kj1l8/stellaris_how_to_access_previous_builds/

Stellaris - How To Access Previous Builds
Tip
https://forum.paradoxplaza.com/forum/index.php?threads/changes-to-playing-previous-versions-of-pds-titles.1120883/

Due to the way the GDPR works in order to access 'historical' builds in various games, you will need to link your Steam account to Paradox. The basic just of it is, older versions of Stellaris don't force you to see the new GDPR compliant privacy policy. This means, in theory, someone buy the game, go to a previous version, launch it, then report PDX for GDPR violations

If you are currently or wish to, play a previous version of Stellaris, you will need to link your Steam account to Paradox as per the thread above.

To find the BETA codes you'll need to unlock previous versions

https://accounts.paradoxplaza.com/games

SCROLL DOWN and find the "Access earlier versions" and click "SHOW". Then you will see codes for the different games. Just input these codes in the BETAS tab in steam. Once you do these older versions will now appear.

Note these codes will be unnecessary to access FUTURE patches, as these patches will be GDPR compliant.

----------

Access earlier versions code = oldstellaris

when you now start the stellaris the paradox app will show Libra v334 in the lower right corner confirming the roll back.

It's worth pointing out that you don't need to do all of that to access 3.3.4 - it should be available in the beta dropdown in steam for all players, you don't need to go through the steps on Paradox's website.

Originally posted by Ruanek:

It's worth pointing out that you don't need to do all of that to access 3.3.4 - it should be available in the beta dropdown in steam for all players, you don't need to go through the steps on Paradox's website.

This... Steam lets you do it via it's options easily via Betas...

I have revert to 3.3.4 when overlord is live, and at first i still able to play my old save or start a new game, but today the game crash at 50% loading. Only enabled STNH, STNH music, STNH UI (federation). Looks like i have to wait until update of 3.4 is out...

UI submods have been updated for 3.4 already so are now causing crashes, turn them off and you can still play using the default UI...

Rollback works but for some reason the Federation skin stopped working this morning. The rollback will now only work without it

Originally posted by Endicott:

Rollback works but for some reason the Federation skin stopped working this morning. The rollback will now only work without it

/sigh

Originally posted by Ruin:

UI submods have been updated for 3.4 already so are now causing crashes, turn them off and you can still play using the default UI...