First of all: Kudos to the programmers and contributors. I've been waiting patiently for a sequel of UFO for a very long time. Besides the dead ends (scout to be captured to continue research) and some minor bugs the game is great.
Today I finally managed to capture 10 living aliens, then saved the game. When trying to continue playing, I got an error that some subsystem failed. The console says:
Load 'slot1'
...subsystem 'size' - loaded 101 bytes
...subsystem 'base' - loaded 90746 bytes
Activate stage invasion
......warning: Set with no missions (stop_invasion)
......warning: Stage set '' not found
......warning: Incomplete mission info for mission type 2 (name: ufocrash-137:-34)
...subsystem 'campaign' returned false - savegame could not be loaded
Greetings from Bonn, Germany
Daniel