Yikes. Not only is
BioGenesis' Steam rating sunk to "Mostly Negative", even recent reviews for
Stellaris itself have dropped to "Mixed". I don't even remember the last time that happened, unless it was when
MegaCorp and the 2.2 "Le Guin" update dropped. That probably says more about the state of the 4.0 release than anything so far; the bugs and other issues players are continuing to run into are just ridiculous.
And now thanks to mods starting to update, I can no longer play version 3.14 either.

Sigh.
Does it affect current campaign? I will have to check this out.
Based on prior experience, I imagine it does, yes. Though "breaking", rather than "affecting", would probably be a more accurate term.