[antron] [0.17.4] [MacOS] Hangs indefinitely during campaign transition

[Auengun]

What did you do?
- Progress through tutorial normally
- Collect machines/items before moving to the right to avoid the biter swarm

What happened?
- Game shows map
- Shows biters coming from the west
- Zooms in on biters eating remnants of base
- Beachball freeze of the game with no crash prompt and no progress

What did you expect to happen instead? It might be obvious to you, but do it anyway!
- Should either give an error message on what went wrong or continue to the next part of campaign

Note: This happens with or without mods. Removing mods causes the same issue.

[antron]

I think this is now fixed, though the campaign has to be restarted, because 0.17.18 does not load the 0.17.4 game.