3rd game with your mod, first time this happened. At 125 planet size the evolutionary shift failed to trigger, instead displaying the event. lp_system_shift_chain_title This is the first time it's done it and I'll assume it's related to the recent changes since the other 2 plays were before your more recent update. Gonna go ahead and poke around and see if I can figure out what's going on but my understanding of this stuff is still in its baby phase.

Parsing through what I understand, I can't find differences between the 125 event and other events.... but the "♥♥♥♥ this in particular" comment made me laugh.

I also re-recreated this problem on a fresh save by using the dev console to instant build outposts ♥♥♥♥♥♥♥ everywhere. Rapidly hit 125 again and had the same issue as described above, meaning its either a real problem somewhere or its a SUPER specific mod conflict.
Getting up to 150 triggers normal events again so it's legitimately just one thing related to 125 planet size broken somewhere. Hopefully someone else reading this can go speedrun their way to 125 planet size to see if its just me or not.

new bug in the latest version. No race can build colony ship if this mod is loaded