Multiplayer w/ 4 People (Horatio, Lumeris, Sophons, and Unfallen) and 4 AI. All players were in America (1 Pacific, 1 Mountain, 2 Eastern).

Settings:

https://steamuserimages-a.akamaihd.net/ugc/852718778178250924/26F91E03573E41135FF17D0619A154B47A61370B/

https://steamuserimages-a.akamaihd.net/ugc/852718778178251119/05F77C2E3B80A74A04612DA97CC762F34EB370C3/

https://steamuserimages-a.akamaihd.net/ugc/852718778178251315/E600DBE8E0D089E303BF22DC6783DF300BD017D2/

Had half a dozen desyncs in the span of ~50 turns. Tried rehosting multiple times (via the provided resync to lobby feature). Player CTDed (I will refer him to this thread to add log) on desync rehost and then everybody got the following error: 

https://steamuserimages-a.akamaihd.net/ugc/852718778178212600/36580680907045224DD8CBEFE678524F77CF5BAB/

After restarting the game had no luck connecting. Host then completely re-hosted (i.e. not from clicking the desync button) and all other players got a different error: 

https://steamuserimages-a.akamaihd.net/ugc/852718778178221294/60F80C547B4B2D73A55BE375E5CAEEE20B8D9CBF/

All rejoins were done through Steam. 

Diagnostics - 2017'06'21.zip

DesyncReport.018.a4eba8a0-1fb7-4820-974c-6bd7956e3a13.zip

DesyncReport.032.a17299b3-7aee-41ee-a7c3-4a3f601de94a.zip

DesyncReport.034.3f3d6c3d-534d-44ce-ac66-344a99879b4f.zip

I do not have save files as another player took over hosting after the third time. I have pointed them to this thread. 

After Re-hosting:

AutoSave 1110.zip

AutoSave 1111.zip

DesyncReport.037.e76f8940-37db-48fd-80d9-6832141b8e23.zip

DesyncReport.047.60255ec9-2157-44a2-bda1-c3e243f2c30d.zip

Diagnostics - 2017'06'21 @1942'33''.html

Thank you :)