I'll make sure wonders have a planet size limit so they don't spawn on too small worlds anymore for next update. That's a good point. Wont do the same for precursor worlds as there are more of them in total. I don't mind larger worlds so I'll leave those be for now.

So apperently the Shield generator thing can be removed by events. I didnt know that.
(What happend: With the planet with i had to command to make it habitable. had a shield generator on it. Then some event happend on the Planet with probes or something and they removed 1 tile blocker.....)

I'll take a look. I prevented those events from removing planet wonders, I should probably add the other special tileblockers as well. My fault for forgetting.

You can try put it back by selecting the planet, open the console and type
event blocker.78870

This should spawn a new precursor shield tile blocker. Not 100% sure if it'll work directly from the console but worth a shot.

X:From (empty)
X has the Precursor Shield arrays Modifier(the modifier still shows)
(I) Does NOT have the precursor_planetary_shield_flag flag.

aw so it doesn't ignore the flag requirement :( Sorry.
I'll work on a fix tomorrow and a proper debug option to fix it in save games. Sorry for the bug

Doesnt matter. it was kinda instresting to see my Shield generator. with i had build my research labs around. Suddenly get removed. (as stated. the event is Country event?) its just a after Precursor event for the Yuth precursor space. So you know a event with removes tileblockers

In my last game I found a lot of dead worlds with valauable world and precursor modifiers. At the start all of them had the greyed-out "Terraforming" button with the tooltip saying "has valuable world modifier" and "has tech: Atmospheric Restoration". So far so good. But when I finally got the Atomspheric Restoration tech, the button for terraforming disappeared on some planets. For example on a planet with the "Precursor Battle Mech" modifier. Is that linked to specific modifiers or just a weird bug?

did that precursor battle mech world have a valuable world modifier or a terraforming candidate modifier. The button is only there on dead worlds if it has one of those two modifiers. The terraform links for dead worlds check for those.

Wondering if that precursor mech dead world spawned without one of those modifiers (that would be a bug).

Hm, I just wanted to take a screenshot of the planet to show you, but now the Terraforming button has reappeared. Weird. I saved and loaded the game several times and this never happened. The button was just gone on multiple planets. Also I didn't add or delete any mods that could conflict with your mod... so I really don't know what could cause this.
I'll start a new game and I will try to look out if this bug reappears and report back.

That sounds very strange. I'll keep an eye out for this in my next test playtrough. I don't know what sort of weird bug this could be.

Just found a wonderous planet, but unfortunately it happened to be a toxic one (in FE space, if that makes a difference). Can't terraform the planet, so if there's a hidden tile blocker/wonder down there I can't tell you what it is.

I fixed that in my last update King Doom but sadly the fix doesn't change savegames, only newly created galaxies. Unless your galaxys is newer in which case a second bug happened.
Sorry for the initial bug :<

Oh, didn't see you replied already! I generated the galaxy yesterday or the day before, so yeah, fair chance it's from before you patched it. I do have another issue though, trying to rename a planet with a wonder on it does not go well at all. I now have a planet called ! that crashes the game if I try to go to it.

I've never had a crash with the names but I'll try to mess with them by renaming and see if I can trigger a crash like that.

Does it crash when you look at the system or the planet? Can you select the planet?
If you can select the planet (perhaps from the galaxy -> sectors and planets menu) and use the console debug command:

event pm_debug.904

That should replace the name with 'star name ruined world'

If that doesn't work perhaps load an earlier save. I'll look into this issue in the meantime to stop it from happening again

The crashing doesn't seem to be happening now (had to wander off and do real life stuff for a few hours). The name change works fine till a colony ship touches down on the planet, that's when it turns to ! Aside from that it all seems to be working fine. The command does work though, thanks!