Strange number installations.
Added 4 spaceports as supply on Earth.
Added 1 demand on Luna, Mars, Venus and Titan.
Ended up with 1. 0125 spaceports on Venus, 1. 025 on Mars. tried to add 0. 0125 supply on Venus to shift the "Digits" back with Civilian but it seems that i am not allowed to add
a supply < 1 for civilians. I always get an error "Wrong input format".
Will ship the Spaceports back with civilian and do them 1 after another. Would be nice if such numbers would be generated by civilian transports because such numbers cause pain 
Seems the same Problem exists with infrastructure. I currently have 5 606. 6355 infrastructure on Luna.
Could you just confirm your decimal separator?
It sometimes happen, to me as well with other installations. If I put 200 mines supply on Earth and 100 demand on Luna and Mars sometimes civilians will transport more that 100 on one of the planets. So I only put demand on one colony at the time. I suppose the partial number of spaceports is because of the size of the installation, it does not fit into normal transport?
As for the infrastructure numbers I can confirm this bug. I have currently 4,030.1933 infrastructure on Luna. If I load default game in 1.9.3 that is provided with the install I see 2,231.2874 infrastructure on Mercury and I didn't touch that game at all.
TN start, real stars, decimal separator is dot.