Thankfully, the problem got solved with new update

@macronaronj

I'm still unable to replicate the CTD.

However, I modified the mod to further improve Compatibility.

Now, the Mod uses the Vanilla Science and Construction ships. Not a Custom ship_size
And as a workaround of unable to differentiate civilian ship designs on Shipyard UI, the mod simply replaces your newly built science & construction ships with Special Design if the conditions met (has the required civic)

@macronaronj

Which is pretty weird, because I was unable to replicate the CTD.
To test it, I only enabled this mod and mass produced science and constructor ships.

I then set Science Ships to AutoSurvey, and Construction Ships to AutoConstruct.

Can we carry the conversation to there:

https://steamcommunity.com/workshop/filedetails/discussion/3547143014/594033854570921353/

the mod science and engineering ships are broken. before making them the game is fine but after i make one things go bad.

so to detail the issue further, after i make a ship i dont even have to use it, ill go check on a system with a gate way or just a random system and the game crashes, ive been testing it for a while and its only this mod and only after i make either of those ships

@Figaround

I also have a Cheat Trait Mod, which is updated for 4.0

@Figaround

There's the Tass cheat mod, which gives you tons of optional cheats.
Though, it's inability to remove unused cheats from game (to avoid tempting into cheating so much that game ceases to be fun) is a minus.

"- Tech Alternative Number = +50" is crazy and I think it will break something, especially early in the game.
I regret that the Cheat Trait + Trait Points/Slots mod is no longer updated, maybe you can make a similar one or suggest a new mod with this feature?
More precisely, I am interested in increasing the characteristics of troops and ships, especially damage.

@FollowTheBlu

LOL

I actually agree. Especially with 4.0

more balanced than the average new dlc