HI,
After several successful launches, now the mod crashes when launching rocket with Drydock Assembly component.
I'm getting this error:

Notice
Error while running event
SpaceMod:on_rocket_launched(ID 10)
LuaEntity API call when LuaEntity was invalid.
stack traceback:
SpaceMod/control.lua:341: in function 'get_spacex_cb'
SpaceMod/control.lua:583: in function 'updateSpacexCombinators'
SpaceMod/control.lua:929: in function
<SpaceMod/control.lua:768>

I think this happened after i've moved the assembly machines from one factory building to another factory building (Factorissimo mod).

I'm running Factorio 0.16.51, and i've all mods updated.
Can anyone help me with this issue ?
Regards

Yes I can help .....

Can I get your save file. I cannot duplicate your issue. Did you move the spacex combinator? Was it in a factorissimo building? Was it destroyed or just moved and replaced?

Yes You can, but it's a big file (52 GB). Please let me know how do You prefer to transfer it.
Yes, I did move the combinator. It was inside a mk2 building, and then, I removed it, and placed it inside a new building (mk3 building).
The combinator was not destroyed. I just placed it in the new building.
I've also tried to destroy all combinators (I have two of them) and create a new one.
But every time a rocket is launched, the error appears.

And thanks for your reply :)

If you can put the file in a dropbox or Google drive location and advise me, I can download from there.

here it is:
https://www.dropbox.com/s/mn4air6mo00dedx/17.%20Return%20Home.zip?dl=0

Fixed in 0.3.16 - enjoy the rest of your campaign.

Indeed it is :)
Thank You very much !!!
I'm really enjoying it :)