G..

I think I found my bug. It says the vessel has an ID of 0 which cannot be true.

Hi, I can't complete my mission to attach a battery to a satellite in orbit. I get the battery from the cargo hold and fix it in place on to the craft. However, it doesn't recognise that I have done what the mission asks which is frustrating. The link shows it attached and the mission not complete. Any solutions? https://imgur.com/a/DdRsNP8