In Space Exploration with Krastorio 2, when trying to build a rocket silo in space, the silo will finish building stage four, and then not progress to stage five. Instead, it will restart stage four again. All resources used in the "previous" stage are lost, and the rocket silo can never be finished. I have tested this with all three types of rocket silo available, and all of them have this problem. Both the satellite silo and the cargo silo work normally on the surface of a world; it seems to only be a problem when the mod tries to skip the first three stages of construction in space.
Also, I don't know if this is expected or not, but I noticed that the space probe rocket silo was asking for the exact same materials as the other two, less advanced silos. I don't know if this is intentional or not, nor do I know what materials it requires in the later stages of construction, but I do know that the space probe silo required different materials to be built in the past.
Thank you for making this awesome mod and for the extra challenge it brings. Hopefully fixing it is a relatively simple affair.
Sincerely,
theberninja262
Edit: I rolled back to version 1.3.5, and the problem was solved. Whatever causes this issue is part of the most recent update.