Hey I tried continuing my campaing on Humankind from Xbox Game Pass PC and got this error: 

The operation was canceled.

  at Amplitude.Mercury.Game.Game+<DoStart>d__4.MoveNext () [0x00157] in <5ea64807bee745218615ec8ef8535182>:0 

  at Amplitude.Coroutine.Run () [0x00019] in <a38bac599c844a99a8a4fcca3b37292e>:0

For context I had started the campaign the day before, then did the latest update and now I have this error.

Hope this helps in some way :D

Same thing happened to me. Just lost an 800+ turn game to some stupid glitch

Yes. This has happened to my last 3 games very late in the process - on "Forever" game speed with ~180 turns to go - very late in games this is a real killer. Can't load any save except from like 200 turns ago. Several reports on this, I see no action or workarounds or anything.

*extremely frustrating*