BATTLETECH - Mission Successful on Liberate Smithon does not advance the campaign.

[Mojo Amok]

One line summary of your issue
Mission Successful on Liberate Smithon does not advance the campaign.

Please explain your issue is in as much detail as possible.
Playing on Steam with game files verified. I have successfully finished Liberate Smithon three times but the cutscene that should take place after the mission doesn't trigger (I've seen this on Youtube). Instead, Liberate Smithon stays as the only available story mission with the campaign stuck in limbo. Everything before the point where the cutscene should take place works fine as I get paid, get salvage, see the "mission successful" graphics, hear the victory music and so on. There are no crashes associated with the issue.

late 2015 iMac / i7 6700K / AMD M395X / 32 GB RAM / High Sierra 10.13.4

Steps to reproduce the issue
It happens every time I run the mission.

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[Mojo Amok]

On further review, I think the problem is that if you try and save the game after you complete the mission, but before the post-mission dialog with the Argo crew starts, it corrupts the save file. All subsequent saves end up corrupted if this happens and you're stuck with a story mission that never goes away no matter how many times you complete it.

But, I went back to a save that was about 10 in-game days before I had started Liberate Smithon and it all worked fine (ie. I got the House Karosas Restored achievement, the next mission in the story is available and so on).

 

[Cormac_Aers]

well fsck, now i'm boned <.< i'm further in the campain (850 days) and i'm trying to keep the save file clean (delete the saves every so often) and i don't have any unbugged savefiles left^^ ah well, i wasn't that happy with my playtrough anyway.
the error occured on the mission: Defense: Smithon