I've encountered a bug playing version 2.5 for Linux. When attempting to recover a crashed UFO or any other mission at a solar-power plant with the Herakles dropship, the mission starts with all my soldiers lined up on top of the dropship and unable to go anywhere. "Auto-complete" works as usual.
I'm sorry, but I'm not reporting this right away, so I don't have a console log to share or a saved game. If you'd like, I can try to grab the log and a screenshot next time this happens.
Saludos, and thanks for creating such a great game!