Hey there, new to Xenonaughts and the forums, but figured I'd chime in.
Whenever I build a large garage, I can no longer load any saves from that point onward. I can go back to save files from before it was made, but everything after that crashes to desktop. Autosaves, manual saves, stategic and ground combat saves, etc.
Additionally, it gave me the -8 hours for production bug. I'm running the latest versions of the community edition, XMCs, and pretty much all the mods you listed in your recommended list. Tried verifying my steam cache, uninstalling and reinstalling mods, and so on.
Regardless, I love your work and thank you for it!