For example the four turrets at the front of it. If I try to remove them with right mouse click, game replies "out of range". If I use ctrl-X to remove them, then they are laying on the ground of platform, but are still out of range (can't pick them).
Maybe you're standing too far from them? I can easily remove them with the right mouse button.
Standing ON a platform? Didn't know that this should be possible. BTW In my save files I can remove objects on platforms even if they are in orbit of another planet - that's why the remote view is for ;-)
Another strange thing - I can't open their GUI when clicking them directly.
I do it without any problems. Just get closer to them.
Or the solar panels at the rear. These can be removed with right mouse click, but they do not appear in the hub but in the inventory of the player.
Isn't this standard behavior? If you remove something with the right mouse button, it always goes into your inventory. If you remove something with Alt+D, it goes into the space platform hub.
In my experience objects are located in the inventory of the hub after removing them from a platform. I think the different behavior is due to (at least) one of your used mods - and I've seen that our sets we're using are nearly completely different. And it's absolutely nonstandard that an item is "beamed" directly from the players inventory to the hub inventory. This is for sure due to one of your mods (and I would nearly bet - although I never bet ;-) - that is part of the original problem).
How did you build this platform - with the map editor or are this features from third party mod(s)?
I just play with mods. I've never used a map editor.
You must have used the map editor earlier (maybe not at will). When using map editor for the 1st time in a save file the game engine issues a warning that you will loose certain achievements by using the map editor and you have to issue the command a 2nd time. When I used map editor in your save file, neither nor happened.
The only mod that has, let's say, an unusual effect on the game is Quantum Fabricator. https://mods.factorio.com/mod/quantum-fabricator
but of course I don't know if it's because of him.
P.S.: All this happens even if I remove D.A.R.T. from the save file - so it's obvious that this isn't caused by my mod.
Everything works as usual for me. I can't even imagine what caused the problems you described :(
The main problem is that I'm quite sure, that even after fixing your current problem (I already did that locally), other problems will raise due to the completely different mod sets, as long it's not clear what is the origin of these differences. And in the moment I am not convinced that it's good idea to make further changes without a deeper understanding what happened, as this would bring the risk of breaking the present functions for other players.
