Here some things: (Done by starting a new galaxy. and observe. 10 FE galaxy. 1000 galaxy size. All dlc except cosmetic, and full zenith of the fallen empire. through everything does get (except Hive combat ships) Zenith ancient cache override weaponry. just not the buildings with is espected(cause these are 2 different mods. and i just like to state it semi works with zenith). nothing wrong with that).

The Eternal Citadel Xenophobes have robots....and they are purging them.

The Hivemind. Combat ships dont use the correct things. (Advanced reactor ''Boosters'' on their ship reactor slot. i think) and several (4 on their medium ships. and 3 on their smaller ones). ofc i dont know if its only because of other mods. or cause you missed it.. as far als i know. only their ships are bugged.

a fallen empire dubbed: Apostolic Basilica. Their ''ring worlds''. or atleast Orbital rings. have bugged discription (FEE_pc_orbital_ring.)

1 Conflict between This mod and Legendary worlds 2.0 (but alot of mods are cause its techinally a bit outdated. or wrongly updated.)
1 conflict(not really but still) between Vanilla and this. given the change to 2.0+. There are now binary. Trinary star systems. and brown dwarfs. so you can update those systems that have the old version and update them to the new one. just a thought.

Fixed the robot issue already, pending update on steam

I believe the hive ships are the only ones that we define manually so that makes sense, where the others use FE ships already in vanilla, which is why thouse work

ill check out the Apostolic Basilica this weekend, when I go through and fix the FEE/ACOT patch to remove some of the gigafortresses that are making them a bit OP in defense

We have the binaries and trinaries like that because we manually position everything, when I tried using the vanilla trinary, it for the most part puts all the start in the middle. I likely just have to play with it a bit more to get it right. But right now the only thing that effects is what the star looks like on the galaxy map as far as I know

Seeing some bugged planet names in the empires.
First one is a hive fallen empire "Azalthyn Hive", they have 1 blackhole system named NAME_Arcturus_Badlands, and it's capital and only world is NAME_Calescent_Nest.

Second is a Stagnant Ascendancy, and it has two NAME_ systems. One is the previously mentioned NAME_Apostolic_Basilica system in the prior posts, the other is NAME_Omnicron-Theta. All worlds within have the NAME_ type.

Otherwise, I can see the Terran Coalition and their one system, "Sol", with all it's colonies are named correctly.

Interesting, ive not seen that at all. do you have other mods running? can you get me some screenshots?

Odd, all the NAME_'s were gone when I loaded the steam cloud save off my other computer. The game was started literally right after I got the mod, so maybe it was some sort of first time initialization thing? I transfered it back to the original computer and sure enough it seems to have fixed itself. If I spot it again i'll screenshot it.

Might be redundant now, but here are my Mods besides this one
Potent Rebellions 2.1
Origins Civics
Dynamic Political Events 2.1
Expanded Stellaris Ascension Perks
Expanded Stellaris Traditions
More Events Mods
Guilli's Planet Modifiers (I would guess this would be the most likely source of some kind of conflict).
Multiple Crises

Might be intended. Might not.
The FE Hive has border friction modifier like a normal empire.

On a note for Calthous issue. I'm only missing
Potent Rebellions 2.1
Origins Civics
from his modlist

Therefor, as long as it's not an Issue in the modfolder, workshop or savegame with it honestly looks like, it's one of these.

Saw it happen again in a new game on computer A. Tried a new game on computer B and did not see it happen in a max fallen empire game.

Reinstalled stellaris on computer A, have not seen it since. I first selected the mod and started a game on computer A, but it looks like something must have failed to aquire when I downloaded it, I guess?

So no Idea on a cause, but it seems to be fixed now.

this technically isn't a bug but i'll still post it here for the future of this mod.

so here's what happened, i awakened all the fallen empires in the large galaxy that i'm in, and the hive mind fallen empire once i awakened them they just ended themselves, here's the pic url : https://steamcommunity.com/sharedfiles/filedetails/?id=1571227062
as you can see there they stripmined their home planet and i don't exactly know how and why, so just posting here for the case of fixing it.

to replicate this you need: this mod (of course) and the Gigastructural Engineering mod, here's a url to that mod : https://steamcommunity.com/sharedfiles/filedetails/?id=1121692237
and awakening the hive mind fallen empire

and no this "bug" doesn't crash the game or anything that is lagging the game, it just makes the hive mind fallen empire uninteresting as when they awaken they will just kill themselves.

possible bug with preventing election for galactic market
visual bugs on hive FE(should be cosmetic only, should function fine)
Terran fanatic phobe FE may collapse, need to reinvestigate economy just in case

Every day I get a black, empty event popup showing up. Do you know what is causing it?

I've not encountered that, nor have my testers. Do you have any other mods running?