Hi everybody! I have the exact problem as stated in post #1 I removed ScienceAlert with no change. I have even removed KSP entirely from my computer an re-installed it without any result. What happens is that I chose to 'transmit science' on my lab in orbit, the transmission of data in the top left corner starts counting towards 100% but when it gets to 100% nothing happens. KSP Version: 1.0.5.1028 Minimal use of mods: RemoteTech, ...................1.6.9 (up to date) (part of space station) SCANsat, ........................14.3 (up to date) (part of satellites) Toolbar, .........................1.7.10 (up to date) ContractConfigurator, .......1.8.0 (up to date) ModuleManager, ..............2.6.13 (up to date) TacLifeSupport, ...............0.11.1.20 (part of space station) MunSeeker Greenhouse, ...tested for Tac-version as above (part of space station) If I remove.... Scansat = no change RemoteTech = it works, but more or less all my craft are gone ModuleManager = it works, but my antennas doesn't work with RemoteTech any longer (probably more issues I haven't discovered) (when RemoteTech and ModuleManager are removed the uploded data-counter have two decimals for the amount of percent uploaded, but not with them installed) All ideas, tips and tweaks are welcome since I have completely run out of possible cause of this issue. ------ Ok, I think I found the issue: the save files. I started a new career with the same mods installed and everything worked! So I tried to tweak the most recent save file without any luck. Is there a way to fix the saves? (without losing all the progress) ------ After some testing where I launched a new lab/experiments into space and checked my other probes I came to the conclusion that for some reason the game doesn't like my space station. I undocked as many parts as possible from my space station in order to rule out any possible faulty part, with no luck however. So what I'm going to do now is to ditch my station, or at least the part with the lab attached. If I only knew whats defect about it...