Coop - Desync Error

[Zaukodar]

So after many attempts to run a Coop game, I finally got one to virtually the end by playing FA Mission 2 "Dawn." After realizing that building experimentals causes desync (this had happened in previous unlogged games) I determined to get through one game without a single experimental.

The game was mostly going according to plan, except for the very end. After Princess Burke revealed herself as alive and everyone was all heartbroken and she and her Cybran boyfriend tossed nukes at each other the desync kicked in. We were close enough to the end that a blitz attack of 30-ish heavy gunships broke through and killed the Cybran ACU, which is the trigger to enable the last cutscene and end the mission, but when the Seraphim ACU appeared he didn't step out of the quantum gateway and the mission was ended when I closed the session.

Attached are the two logs I have available (there is no replay log for some reason?), which I submit in the hope that this bug can be narrowed down and eliminated. Note that the game.log file is a highly edited copy, removing over 800 megabytes worth of the "warning: snd: xact3dapply failed." notification.

[Deering]

My logs

[andybe]

my friend and I also keep getting desyncs. i think it happened when i started building fat boys... googling revealed that 2 years ago the same issue occured with t4 units in coop? Is That the same bug?

[mirddes]

im having the same issue.

[mirddes]

i too have encountered similar issues in recent games of coop.

happened quickly when building experimentals in misison 1 of FA.
in game 3, mission 2, we got pushed back pretty hard and survived because my buddy's commander was immortal (0-1hp, never died). mine exploded at some point and by the time at the hour mark we built experimentals and more desyc occurred.

one would have thought this problem fixed after all these years.

i have said it before. total annihilaion needs the source code released and forged alliance needs another 10 years of modding (source code would probably help).

Planetary annihilation seems like a farce with its new paid expansion pack for what seems to be an unfinished game. is the expansion better in the same way cc/bt and fa were to their contemporaries?

[speed2]

Desync in FA mission 2 happens during the the cinematics right?

one would have thought this problem fixed after all these years.

For year or so coop ran on old patch till the moment when it stopped working (all those years no one was working on it...). It was updated to use the same patch as FAF and that brough many issues since all the changes that hapenned in FAF patches were never tested for coop. Those are slowly being fixed.
And except those Im the only one working on coop maps right now, since its not the priority for other people and my skills are limited.