I noticed that Zzhora and Froodara are placed on the sun:

https://i.imgur.com/QsOsMXR.png

Looking at the mod images and the description, it looks like they are supposed to orbit Vulcanus with the same angle and distance, but instead are apparently orbiting the sun instead.

Not sure if I am missing a mod for compatibility, I tried with Nexuz and without, but see no difference.
If I isolate it to just enable Better Planets (and dependencies) and enable Zzhora and Froodara, their spawn is bugged at the sun.

I can hotfix their positions with a bit of trigonometry:

Froodara:
- radius 9.029
- angle 101.58
Zzhora:
- radius 8.786
- angle 70.11

but then the orbit indicators are a bit off...
but at least those are only cosmetic afaik, so it shouldn't be a big issue for my run at least

https://i.imgur.com/62T4K53.png

I found what caused this bug. You need to install Cosmic-Social-Distancing mod.
I updated Better Planets and include this mod as dependency, it would fix planet orbits issues

Looks like it is not yet fixed, I added Cosmic-Social-Distancing and updated all mods to latest and reset all mod settings to default, but it still places the planets close to the sun for me.

I added a savefile for example and potential mod sync.
https://limewire.com/d/mk4w1#Ox2sboxG82

Interestingly... in my full mod setup, updating the mods did fix it, and froodara and zzhora were placed "correctly" with my custom settings now from the position of vulcanus: https://i.imgur.com/KCFZti2.png (resetting the settings to default would put them in the correct place)
So something is still missing in the isolated setup, so there is some missing optional dependency.
But... after updating all mods, the shattered planet now is... in the middle of the solar system
while the shattered planet approach and lost beyond are still where they "should" be
https://i.imgur.com/9ISEhUV.png
https://i.imgur.com/rTB6jEC.png

Nice catch! I'm glad the Vulcanus moons are positioned correctly for you now.
I've updated the mod to version 1.0.6 and made the Redrawn Space Compatibility mod mandatory, which should fix most of the connection issues.
Better Planets is designed to be played with the full listed set of planets.
However, you can disable any planets you don’t want, but in that case you may need to tweak some parameters.
Mods like Redrawn Space Connections dynamically draw connections between planets, and if some of them are missing, those connections may not behave as intended.

But... after updating all mods, the shattered planet now is... in the middle of the solar system
while the shattered planet approach and lost beyond are still where they "should" be

Try to reset to default setting all the numbers in mod settings, it should help.

@Wietlol, fixed all issues in 1.0.7 version, after you updated, update mod configuration to defaults, should fix everything.